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Photographed 9 September 2015.

Article records that use this photograph:

• Field Notes: Coll. No. 1293, 9 Sep 2015.

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The grid spacing is 1/4 inch.

Article records that use this photograph:

• Coyote Springs Road, Mono County, California: at Coyote Spr.
• Field Notes: Coll No. 482.

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Photograph taken August 2, 2007 beside Bohler Creek.

Article records that use this photograph:

• Field Notes: 2-Aug-07.

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Scanned 13 March 2011. Background grid is 10 x 10 to the inch.

Article records that use this photograph:

• Field Notes: 2-Aug-07.

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Photographed 6 July 2016.

Article records that use this photograph:

• Field Notes: Coll. No. 1485, 6 Jul 2016.

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Photographed 26 July 2015.

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: near coll loc west.
• Field Notes: Coll. No. 1251, 26 Jul 2015.

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Scanned 15 October 2019.

Article records that use this photograph:

• Field Notes: Coll. No. 2083, 17 Jun 2019.

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Photographed 15 October 2019.

Article records that use this photograph:

• Field Notes: Coll. No. 2083, 17 Jun 2019.

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©Max Lichter (CC BY-SA). Locality: unknown. URL: http://swbiodiversity.org/seinet/imagelib/imgdetails.php?imgid=19261 Accessed: 11 April 2020. Images are made available on SEINet under the Creative Commons Attribution-ShareAlike (CC BY-SA).

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Acroptilon repens.

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Photograph taken 5 July 2010.

Article records that use this photograph:

• Field Notes: Coll. No. 631, 5 Jul 2010..

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Photograph taken 5 July 2010.

Article records that use this photograph:

• Forest Road 1N02 "Sagehen Meadows Road," Mono County, California: at Sagehen Mdw.
• Field Notes: Coll. No. 631, 5 Jul 2010..

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Photograph taken 5 July 2010.

Article records that use this photograph:

• Field Notes: Coll. No. 631, 5 Jul 2010..

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Scanned 15 Jul 2015.

Location records that use this photograph:

• Mount Galbraith Park, Jefferson County, Colorado

Article records that use this photograph:

• Nightbird Gulch Trail, Mount Galbraith Park, Jefferson County, Colorado: near ridge.
• Field Notes: Coll. No. 1101, 3 May 2015.

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Photographed 3 May 2015.

Location records that use this photograph:

• Mount Galbraith Park, Jefferson County, Colorado

Article records that use this photograph:

• Nightbird Gulch Trail, Mount Galbraith Park, Jefferson County, Colorado: near ridge.
• Field Notes: Coll. No. 1101, 3 May 2015.

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Scanned 1 October 2017.

Coll. No. 1571, 18 April 2017, characters observed: Perennial shrub, to 40 cm.; Stem, woody, densely short strigose when young; Leaves, petiole 10 mm., blade 16 mm × 13 mm. wide, pinnately lobed, short strigose; Phyllaries (staminate flowers), fused at base, in 1 series, #7, eglandular, tip acute; Flowers, 2 kinds in different heads, staminate flowers, #15, pistilate flowers, #2; Pappus, 0; Style, 2-branched, fused(?); Fruit, bur, 6 mm. × 6 mm. wide, ±spheric, spines, #15, 2 mm.

Article records that use this photograph:

• Excelsior Mine Road - Eastern Mojave Desert: at dirt road.
• Field Notes: Coll. No. 1571, 18 Apr 2017.

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Photographed 1 October 2017.

Article records that use this photograph:

• Excelsior Mine Road - Eastern Mojave Desert: at dirt road.
• Field Notes: Coll. No. 1571, 18 Apr 2017.

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Wash at Lobo Point.

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Photographed 15 October 2014.

Article records that use this photograph:

• Lubahn Trail (southern segment of loop), Golden, Jefferson County, Colorado: at Coll. No. 1069.
• Field Notes: at Coll. No. 1069.

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Scanned 18 October 2014.

Article records that use this photograph:

• Field Notes: at Coll. No. 1069.

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Scanned 18 October 2014.

Article records that use this photograph:

• Field Notes: at Coll. No. 1069.

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Photographed 12 January 2018

Article records that use this photograph:

• Field Notes: Coll. No. 1763, 1 Sep 2017.

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Photographed 8 October 2014.

Location records that use this photograph:

• North Table Mountain, Jefferson County, Colorado

Article records that use this photograph:

• Golden Cliffs Trail, Golden, Jefferson County, Colorado: near rim.
• Field Notes: Coll. No. 1068.

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Photographed 8 January 2018.

Article records that use this photograph:

• Field Notes: Coll. No. 1748, 31 Aug 2017.

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Scanned 10 October 2013.

Coll. No. 2.3, 16 Apr 1993, characters observed while keying: Leaf blade linear to thread-like, Head, pistillate, phyllaries 2; Bur, palea tips membraneous wings, wings of bur 2.8 mm. wide.

Article records that use this photograph:

• Black Canyon Road - Mojave National Preserve: Woods Mtns Petroglyphs.
• Field Notes: Coll. No. 2.3.

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Photographed 31 May 2012.

Article records that use this photograph:

• Forest Road 1N02 "Sagehen Meadows Road," Mono County, California: at Sagehen Mdw.
• Field Notes: Coll. No. 824.

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Scanned 26 January 2013.

Article records that use this photograph:

• Forest Road 1N02 "Sagehen Meadows Road," Mono County, California: at Sagehen Mdw.
• Field Notes: Coll. No. 824.

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Photographed 26 July 2015.

Coll. No. 1257, 26 Jul 2015, characters observed: Annual (?) to 45 cm.; Leaves, cauline, alternate, 40 mm. × 4 mm. wide, decurrent, lance-linear, entire, stalked glandular, tomentose abaxially; Inflorescence, branched axial and terminal; Heads in tight clusters, disciform; Involucre, 4 mm.; Receptacle, epaleate; Phyllaries in 4+ series, hyaline; Pappus, bristles.

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: near coll loc west.
• Field Notes: Coll. No. 1257, 26 Jul 2015.

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Photographed 1 June 2015.

The large herbs growing out of the grasses are Frasera speciosa.

Article records that use this photograph:

• Castle Trail, Mount Falcon Park, Jefferson County, Colorado: along trail.
• Field Notes: Coll. No. 1128, 1 Jun 2015.

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Photographed 29 November 2018.

Coll. No. 1909, 31 May 2018, characters observed: Perennial herb, to 10 cm., stoloniferous; Stem, tomentose; Leaves, basal and cauline, basal, petiole, gradually expanding into blade, blade, 16 mm. × 6.7 mm. wide, oblanceolate, entire, glandular, tomentose, tips, pointed, cauline, 10 mm. × 2 mm. wide, linear; Inflorescence, heads enclosed by an involucre, #3 per stem, not showy; Involucre, 7 mm. × 4.5 mm. wide, cylindric; Phyllaries, 5+ series, 4 mm. × 2 mm. wide to 8 mm. × 1 mm. wide, green proximally to white (pinkish) distally, tomentose, margins, flat, scarious, tips, rounded; Receptacle, epaleate; Flowers, of 1 kind; Disk flowers, many, 6.5 mm., white; Pappus, many, well-developed, bristles, 8 mm., ±equal; Cypsela, 0.8 mm. × 0.3 mm. wide, brown, glabrous.

Article records that use this photograph:

• Field Notes: Coll. No. 1909, 31 May 2018.

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Scanned 29 November 2018.

Coll. No. 1909, 31 May 2018, characters observed: Perennial herb, to 10 cm., stoloniferous; Stem, tomentose; Leaves, basal and cauline, basal, petiole, gradually expanding into blade, blade, 16 mm. × 6.7 mm. wide, oblanceolate, entire, glandular, tomentose, tips, pointed, cauline, 10 mm. × 2 mm. wide, linear; Inflorescence, heads enclosed by an involucre, #3 per stem, not showy; Involucre, 7 mm. × 4.5 mm. wide, cylindric; Phyllaries, 5+ series, 4 mm. × 2 mm. wide to 8 mm. × 1 mm. wide, green proximally to white (pinkish) distally, tomentose, margins, flat, scarious, tips, rounded; Receptacle, epaleate; Flowers, of 1 kind; Disk flowers, many, 6.5 mm., white; Pappus, many, well-developed, bristles, 8 mm., ±equal; Cypsela, 0.8 mm. × 0.3 mm. wide, brown, glabrous.

Article records that use this photograph:

• Field Notes: Coll. No. 1909, 31 May 2018.

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Photographed 9 September 2015.

Article records that use this photograph:

• Field Notes: in the field.

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Scanned 14 June 2015.

Coll. No. 1083, 25 April 2015, characters observed: Perennial herb, to 9 cm., stoloniferous 4-5 cm., forming loose mats in wet muddy soil, all sixteen plants collected pistillate (gynoecious?); Leaves, simple, white tomentose both sides, basal, 35 mm. × 9 mm wide, oblanceolate, cauline, 11-13 mm., linear; Inflorescence, >> basal leaves; Involucre, 5.5-7.0 mm.; Bracts (phyllaries), 5.0-6-5 mm. × 1.1-0.7 mm. wide, green at base, purplish band in middle, tips, white, scarious.

Location records that use this photograph:

• Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: at coll loc.
• Field Notes: Coll. No 1083, 25 Apr 2015.

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Photographed 9 September 2015.

Article records that use this photograph:

• Field Notes: in the field.

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©Paul Rothrock (CC BY-SA). Locality: unknown. URL: http://swbiodiversity.org/seinet/imagelib/imgdetails.php?imgid=15815380. Accessed: 11 April 2020. Images are made available on SEINet under the Creative Commons Attribution-ShareAlike (CC BY-SA).

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Arctium minus.

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Scanned 17 March 2011. Background grid is 10 x 10 to the inch.

Coll. No. 510, 2 Aug 2007, characters observed: Herbaceous perennial, 60 cm.; Stem, proximal axils white hairy; Leaves opposite, petiole 65 mm, blade 68 mm. × 15 mm. wide, length 4.5 × width; Inflorescence 2-3 heads; Heads, 2 kinds of flowers; Phyllaries in 2 series, 8 mm., outer ≥ inner, stalked glandular, adaxial face glabrous, hair tufted near tip, tip acute; Receptacle epaleate; Ray corolla yellow; Disc corolla should be stalked-glandular but can't see; Pappus of well-developed bristles on both kinds of flowers, 6 mm., white, short plumose; Achene, sparsely glandular.

Article records that use this photograph:

• Forest Road 01N106A, Mono County, California: at collecting locality.
• Field Notes: 2-Aug-07.

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Scanned 31 July 2019.

Article records that use this photograph:

• Field Notes: Coll. No. 2038, 26 May 2019.

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Scanned 24 September 2015.

Article records that use this photograph:

• Field Notes: Coll. No. 1119, 28 May 2015.

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Scanned 24 November 2016.

Perennial herb of wetlands or moist areas, to 35 cm., glandular hairy throughout; Leaves, mostly basal and few cauline, basal, axils with 5 mm. brown wavy hair, petiole 70 mm. + blade 60 mm. × 12 mm. wide, 5 × longer than wide, cauline, opposite, sessile, ±2 pair, much reduced; Inflorescence, single heads on peduncle to 80 mm., flowers of two kinds; Involucre, 13 mm. × 22 mm. wide; Phyllaries, 2 ±equal series, 11-12 mm.× 3 mm. wide, green with dark tips; Receptacle epaleate; Rays, #12, fertile, tube 3 mm. + blade 16 mm. × 7 mm. wide = 19 mm., corolla yellow; Disc flowers, tube 7 mm. + lobes ≤1 mm. = 8 mm.; Pappus, bristles, 9 mm., white; Anther, yellow; Achene, 5 mm., short hairy. Described from Coll. No. 1119, 28 May 2015, and Coll. No. 1371, 29 May 2016. Subtribe Arnicinae is a subtribe to Madiinae (tarweeds) and Hulseinae, which contains both Hulsea and Eatonella, both common in the Mono Lake basin.

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: at bend.
• Field Notes: Coll. No. 1371, 29 May 2016.

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Photographed 29 May 2016.

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: at bend.
• Field Notes: Coll. No. 1371, 29 May 2016.

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Scanned 24 September 2015.

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: near coll loc.
• Field Notes: Coll. No. 1119, 28 May 2015.

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Photographed 27 January 2019.

Article records that use this photograph:

• Forest Road 131, Pike -San Isabel National Forest, Lake County, Colorado: at coll. loc.
• Field Notes: Coll. No. 2006, 25 Jul 2018.

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Photographed 27 January 2019.

Article records that use this photograph:

• Forest Road 131, Pike -San Isabel National Forest, Lake County, Colorado: at coll. loc.
• Field Notes: Coll. No. 2010, 25 Jul 2018.

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Scanned 10 Nov 2011.

Coll. No. 692, 10 Nov 2011, characters observed while keying: Perennial spreading by rhizomes; Leaves opposite, cauline 4 pairs, reduced above, w/o embedded oil glands; Involucre 10 mm, 12 mm dia.; Receptacle naked; Phyllaries ~14, in one series, 9 mm, w/o embedded oil glands; Rays ~ 12, yellow, 15 mm, strap 10 mm x 3 mm wide; Disc flowers ~40, yellow, 6 mm, 2 mm wide; Achenes black, 3 mm, pappus of hairs, white, short-barbed.

Location records that use this photograph:

• Sagehen Meadow, Mono County, California

Article records that use this photograph:

• Field Notes: 26 Jul 2010.

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Photograph taken 26 July 2010 in Sagehen Meadow.

Location records that use this photograph:

• Sagehen Meadow, Mono County, California

Article records that use this photograph:

• Field Notes: 26 Jul 2010.

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Scanned 10 Nov 2011.

Coll. No. 692, 10 Nov 2011, characters observed while keying: Perennial spreading by rhizomes; Leaves opposite, cauline 4 pairs, reduced above, w/o embedded oil glands; Involucre 10 mm, 12 mm dia.; Receptacle naked; Phyllaries ~14, in one series, 9 mm, w/o embedded oil glands; Rays ~ 12, yellow, 15 mm, strap 10 mm x 3 mm wide; Disc flowers ~40, yellow, 6 mm, 2 mm wide; Achenes black, 3 mm, pappus of hairs, white, short-barbed.

Location records that use this photograph:

• Sagehen Meadow, Mono County, California

Article records that use this photograph:

• Field Notes: 26 Jul 2010.

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Photograph taken 26 July 2010 in Sagehen Meadow.

Article records that use this photograph:

• Field Notes: 26 Jul 2010.

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Scanned 10 Nov 2011.

Coll. No. 692, 10 Nov 2011, characters observed while keying: Perennial spreading by rhizomes; Leaves opposite, cauline 4 pairs, reduced above, w/o embedded oil glands; Involucre 10 mm, 12 mm dia.; Receptacle naked; Phyllaries ~14, in one series, 9 mm, w/o embedded oil glands; Rays ~ 12, yellow, 15 mm, strap 10 mm x 3 mm wide; Disc flowers ~40, yellow, 6 mm, 2 mm wide; Achenes black, 3 mm, pappus of hairs, white, short-barbed.

Location records that use this photograph:

• Sagehen Meadow, Mono County, California

Article records that use this photograph:

• Field Notes: 26 Jul 2010.

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Scanned 10 Nov 2011.

Coll. No. 692, 10 Nov 2011, characters observed while keying: Perennial spreading by rhizomes; Leaves opposite, cauline 4 pairs, reduced above, w/o embedded oil glands; Involucre 10 mm, 12 mm dia.; Receptacle naked; Phyllaries ~14, in one series, 9 mm, w/o embedded oil glands; Rays ~ 12, yellow, 15 mm, strap 10 mm x 3 mm wide; Disc flowers ~40, yellow, 6 mm, 2 mm wide; Achenes black, 3 mm, pappus of hairs, white, short-barbed.

Location records that use this photograph:

• Sagehen Meadow, Mono County, California

Article records that use this photograph:

• Field Notes: 26 Jul 2010.

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Photograph taken 26 July 2010 in Sagehen Meadow.

Article records that use this photograph:

• Field Notes: 26 Jul 2010.

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Photographed 13 January 2018.

Coll. No. 1767, 1 Sep 2017, characters observed: Perennial herb, to 60 cm., longer lived than biennial; Stem, 4± per caudex, reddish; Leaves, basal mostly withered, cauline, 8 mm. × 0.6 mm. wide, narrowly oblanceolate, tomentose; Inflorescence, 130 mm. × 20 mm. wide; Heads, many, 2 mm. × 2 mm. wide; Phyllaries, 2+ series, 1.5 mm. × 1 mm. wide, green to scarious; Receptacle, naked.

Article records that use this photograph:

• Field Notes: Coll. No. 1767, 1 Sep 2017.

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Photographed 13 January 2018.

Coll. No. 1767, 1 Sep 2017, characters observed: Perennial herb, to 60 cm., longer lived than biennial; Stem, 4± per caudex, reddish; Leaves, basal mostly withered, cauline, 8 mm. × 0.6 mm. wide, narrowly oblanceolate, tomentose; Inflorescence, 130 mm. × 20 mm. wide; Heads, many, 2 mm. × 2 mm. wide; Phyllaries, 2+ series, 1.5 mm. × 1 mm. wide, green to scarious; Receptacle, naked.

Article records that use this photograph:

• Field Notes: Coll. No. 1767, 1 Sep 2017.

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Scanned 20 Nov 2011.

Coll. No. 715, 20 Nov 2011, characters observed while keying: Subshrub woody at base, 30-35 cm tall, unarmed; Leaves linear, entire, 15 mm, < 2 mm wide; Heads erect, 3 mm dia. (less than 5 mm per TJM1, 2, & D).

Article records that use this photograph:

• Field Notes: Col. #716.

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Photographed 10 January 2018.

Article records that use this photograph:

• Field Notes: Coll. No. 1754, 31 Aug 2017.

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Scanned 10 January 2018.

Article records that use this photograph:

• Field Notes: Coll. No. 1754, 31 Aug 2017.

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Scanned 8 October 2014.

Location records that use this photograph:

• North Table Mountain, Jefferson County, Colorado

Article records that use this photograph:

• Golden Cliffs Trail, Golden, Jefferson County, Colorado: near rim.
• Field Notes: Coll. No. 1067.

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Scanned 8 October 2014.

Location records that use this photograph:

• North Table Mountain, Jefferson County, Colorado

Article records that use this photograph:

• Golden Cliffs Trail, Golden, Jefferson County, Colorado: near rim.
• Field Notes: Coll. No. 1067.

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Photographed 8 October 2014.

Location records that use this photograph:

• North Table Mountain, Jefferson County, Colorado

Article records that use this photograph:

• Golden Cliffs Trail, Golden, Jefferson County, Colorado: near rim.
• Field Notes: Coll. No. 1067.

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Scanned 13 Jun 2020.

Article records that use this photograph:

• Field Notes: 13 Jun 2020.

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Photographed 15 January 2016

In Weber & Wittmann (2012) and Ackerfield (2015) will key to Artemisia ludoviciana Nutt. var. ludoviciana, because of the entire leaves. However, in FNANM, revolute margins lead one away from subsp. ludoviciana, perhaps in the direction of subsp. mexicana (Willdenow ex Sprengel) D. D. Keck. Most of the collections of A. ludoviciana Nutt. in Jefferson County, Colorado, are undetermined as to infraspecific taxa, and considerable variation in leaf margins and lobes can be seen in the specimens.

Article records that use this photograph:

• Field Notes: Coll. No. 1281, 28 Aug 2015.

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Scanned 15 January 2016.

The leaf margins are entire and revolute.

In Weber & Wittmann (2012) and Ackerfield (2015) this collection will key to Artemisia ludoviciana Nutt. var. ludoviciana, because of the entire leaves. However, in FNANM, revolute margins lead one away from subsp. ludoviciana, perhaps in the direction of subsp. mexicana (Willdenow ex Sprengel) D. D. Keck. Most of the collections of A. ludoviciana Nutt. in Jefferson County, Colorado, are undetermined as to infraspecific taxa, and considerable variation in leaf margins and lobes can be seen in the specimens.

Article records that use this photograph:

• Field Notes: Coll. No. 1281, 28 Aug 2015.

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Photographed 25 August 2013.

Coll. No. 898, 24 August 2012, characters observed while keying: Perennial herb, to 40 cm, unarmed, spreading by rhizomes; Leaf tomentose abaxially, sparse tomentose adaxially, proximal wedge-shaped, 40 mm × 15 mm wide, 3+-toothed, ≤⅓ leaf-width, distal lanceolate, entire;

Frequency and depth of leaf lobing distinguishes between ssp. ludoviciana and ssp. incompta. These leaves are neither 2°-divided, nor deeper than ⅓-width, nor divided nearly to the mid-rib. Therefore, ssp. ludoviciana is applied rather than ssp. incompta.

Article records that use this photograph:

• Rattlesnake Gulch Road, Mono County, CA: at upper cabin.
• Field Notes: Coll. No. 898.

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Scanned 25 August 2013.

Coll. No. 898, 24 August 2012, characters observed while keying: Perennial herb, to 40 cm, unarmed, spreading by rhizomes; Leaf tomentose abaxially, sparse tomentose adaxially, proximal wedge-shaped, 40 mm × 15 mm wide, 3+-toothed, ≤⅓ leaf-width, distal lanceolate, entire;

Frequency and depth of leaf lobing distinguishes between ssp. ludoviciana and ssp. incompta. These leaves are neither 2°-divided, nor deeper than ⅓-width, nor divided nearly to the mid-rib. Therefore, ssp. ludoviciana is applied rather than ssp. incompta.

Article records that use this photograph:

• Rattlesnake Gulch Road, Mono County, CA: at upper cabin.
• Field Notes: Coll. No. 898.

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Scanned 15 Jan 2014.

Coll. No. 246, 5 June 2000, characters observed: Perennial (assumed), to 40 cm.; Leaves, basal unknown, cauline present; Phyllaries, in 2 series, ±equal, abruptly narrowed at middle, not subtending ray flowers; Receptacle, flat, paleate, palea folded around disk flower ovary; Flowers, of two kinds, heads radiate; Rays, yellow, sterile, style 0, pappus of short scales; Disk, pappus of short scales and 2 long scales; Fruit, compressed, hairy, but margin not ciliate.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 246.

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Photographed 24 October 2013.

Coll. No. 337.1, 20 Apr 2004, characters observed while keying: Annual (biennial or short-lived perennial), to 40 cm., ±gray-tomentose, scapose; Leaves alternate; Inflorescence, heads solitary, flowers of two kinds, some with strap-shaped corollas; Involucre 6 mm.; Phyllaries, in 2+ series, slightly overlapping, ±equal, erect; Receptacle, hemispheric, epaleate; Pappus 0; Ray flowers, many, corolla, yellow, 13 mm. × 9 mm. wide, 3-lobed, when dry persistent papery reflexed; Fruit achene, 3.5 mm., ±equally ribbed.

Article records that use this photograph:

• Kingston Road - Eastern Mojave Desert: near Winters Pass.
• Field Notes: Coll. No. 337.1.

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Scanned 26 Jan 2014.

Coll. No. 291, 26 May 2001, characters observed: Perennial, to 50 cm., gray tomentose; Leaves, alternate, petiole 40 mm. + blade 25 mm., ovate, pinnate-lobed; Inflorescence, composed of 2 kinds of flowers, Head, hemispheric, radiate; Phyllaries, in 2 series, ±equal, erect, overlapping, long spreading hairs; Receptacle epaleate; Ray, #32⁺, corolla, 13 mm., yellow, prominently 3-lobed, persistent when dry, papery, reflexed; Pappus, 0; Fruit, achene, ±smooth (minutely papillate on ribs).

Article records that use this photograph:

• Wild Horse Canyon Road - Mojave National Preserve: near Wild Horse Mesa.
• Field Notes: Coll. No. 291.

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Scanned 26 Jan 2014.

Coll. No. 291, 26 May 2001, characters observed: Perennial, to 50 cm., gray tomentose; Leaves, alternate, petiole 40 mm. + blade 25 mm., ovate, pinnate-lobed; Inflorescence, composed of 2 kinds of flowers, Head, hemispheric, radiate; Phyllaries, in 2 series, ±equal, erect, overlapping, long spreading hairs; Receptacle epaleate; Ray, #32⁺, corolla, 13 mm., yellow, prominently 3-lobed, persistent when dry, papery, reflexed; Pappus, 0; Fruit, achene, ±smooth (minutely papillate on ribs).

Article records that use this photograph:

• Field Notes: Coll. No. 291.

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Photographed 30 April 2020.

Article records that use this photograph:

• Field Notes: Coll. No. 2252, 30 Apr 2020.

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Photographed 30 April 2020.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Balsamorhiza sagittata.
• Field Notes: Coll. No. 2252, 30 Apr 2020.

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Photograph taken 15 Jul 2010.

Article records that use this photograph:

• Forest Road 01S17G, Mono County, California: 75000.
• Field Notes: 15 Jul 2010.

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Photograph taken 22 June 2011.

Article records that use this photograph:

• Unnamed Road to Mine, Mono County, California: below mine.
• Field Notes: Coll. No. 782, 22 Jun 2011..

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Scanned 31 August 2015.

(a) Disarticulated disc flower with stamens and stigmas.
(b) Achene, adaxial side with palea partially folded around front.
(c) Intact disc flower, adaxial side, with palea partially folded around the achene, corolla, stamens exserted, stigmas not exserted yet.
(d) Achene and palea, abaxial side.

Article records that use this photograph:

• Field Notes: Coll. No. 1109, 14 May 2015.
• Glossary: palea.

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Scanned 31 August 2015.

Article records that use this photograph:

• Field Notes: Coll. No. 1109, 14 May 2015.

        images/TAS011090Head.jpg

Photographed 22 May 2013.

Article records that use this photograph:

• Forest Road 01N17, "Farrington Siphon," Mono County, California: at Coll. No. 956.
• Field Notes: Coll. No. 956.

        images/IMG_1462sm.jpg

Scanned on Groundhog's Day, 2 Feb 2014.

Coll. No. 956, 22 May 2013, characters observed: Perennial herb, to 50 cm.; Leaves, mostly basal, 20 cm. × 12 cm, widely triangular, base sagittate, tomentose, cauline much reduced; Inflorescence, radiate, composed of 2 kinds of flowers, some strap-shaped; Phyllaries, in 2+ series, not all subtending ray flowers, eglandular, bases tomentose; Receptacle, paleate; Paleae, folded, partially surrounding disk flower ovary; Rays, yellow, fruiting, fruit 9 mm. + corolla 32 mm. × 11 mm.; Pappus 0.

Article records that use this photograph:

• Forest Road 01N17, "Farrington Siphon," Mono County, California: at Coll. No. 956.
• Field Notes: Coll. No. 956.

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Photographed 14 May 2015.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Balsamorhiza sagittata. 9330510280Balsag010.
• Tin Cup Ridge (social trail), Jefferson County, Colorado: at Coll. 1109.
• Field Notes: Coll. No. 1109, 14 May 2015.

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Scanned 31 August 2015.

Article records that use this photograph:

• Tin Cup Ridge (social trail), Jefferson County, Colorado: at Coll. 1109.
• Field Notes: Coll. No. 1109, 14 May 2015.

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Scanned 31 August 2015.

Article records that use this photograph:

• Tin Cup Ridge (social trail), Jefferson County, Colorado: at Coll. 1109.
• Field Notes: Coll. No. 1109, 14 May 2015.

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Scanned 24 Jan 2012.

Article records that use this photograph:

• Field Notes: Coll. No. 782, 22 Jun 2011..

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Photographed 20 May 2013.

Article records that use this photograph:

• Forest Road 01N17, "Farrington Siphon," Mono County, California: near Walker Ck.
• Field Notes: 20 May 2013.

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Photographed 4 February 2020.

Coll. No. 2202, 27 August 2019, characters observed: Herbs, 18-28 cm.; Leaves, basal, unknown, cauline, opposite, 50 mm. × 40 mm. wide, pinnately compound, leaflets, #3, 25 mm. × 12 mm. wide, margin, serrate; Inflorescence, head enclosed in an involucre, 5-6 mm. wide; Phyllaries, outer, #5, 12 mm. × 2 mm. wide, green, inner, many, 5.5 mm. × 2.5 mm. wide, brown, margin, scarious (similar to the paleae); Receptacle, paleate; Paleae, 5 mm. × 1.7 mm. wide, margin, scarious; Corolla, 1.5 mm., orange-yellow; Pappus, #2, barbed awns, 1.5 mm.; Achene, 2-5-2.8 mm. × 1.5 mm. wide, very flat, hairy.

Article records that use this photograph:

• Field Notes: Coll. No. 2202, 27 Aug 2019.

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Scanned 4 February 2020.

Coll. No. 2202, 27 August 2019, characters observed: Herbs, 18-28 cm.; Leaves, basal, unknown, cauline, opposite, 50 mm. × 40 mm. wide, pinnately compound, leaflets, #3, 25 mm. × 12 mm. wide, margin, serrate; Inflorescence, head enclosed in an involucre, 5-6 mm. wide; Phyllaries, outer, #5, 12 mm. × 2 mm. wide, green, inner, many, 5.5 mm. × 2.5 mm. wide, brown, margin, scarious (similar to the paleae); Receptacle, paleate; Paleae, 5 mm. × 1.7 mm. wide, margin, scarious; Corolla, 1.5 mm., orange-yellow; Pappus, #2, barbed awns, 1.5 mm.; Achene, 2-5-2.8 mm. × 1.5 mm. wide, very flat, hairy.

Article records that use this photograph:

• Field Notes: Coll. No. 2202, 27 Aug 2019.

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Collected at Lobo Point.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 148.

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Scanned 21 January 2017.

Article records that use this photograph:

• Field Notes: Coll. No. 1546, 1 Sep 2016.

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Photographed 13 October 2015.

Article records that use this photograph:

• Climbing Access Trail, North Table Mountain Park, Jefferson County, Colorado: near s. end.
• Field Notes: Monday, October 12th.

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Photographed 13 October 2015.

Article records that use this photograph:

• Climbing Access Trail, North Table Mountain Park, Jefferson County, Colorado: near s. end.
• Field Notes: Monday, October 12th.

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Photographed 23 January 2017.

North Table Mountain, adjacent to the North Table Loop, 285 m. north of the USBR monument designated “North Table,” 1.8 km. north of the GNIS location of Golden. 39.7716°N, 105.2182°W. WGS 1984 Elev. 1953 m. Common in bed of ephemeral stream, in an upper portion of a watercourse draining southeast to Clear Creek through an unamed canyon. Many Eriogonum alatum at this location.

Coll. No. 1553, 1 Sep 2016, characters observed: Perennial herb, to 40 cm.; Leaves, alternate, short-petioled (2 mm.), 48 mm. × 7 mm. wide, lanceolate, tip obtuse, margin entire, glandular-punctate, sparsely strigose; Inflorescence, corymbiform, heads in groups of 4-5; Involucre, 8.5 mm. × 6 mm. wide; Phyllaries, 3+ series, graduated, 2-8.5 mm. × 0.5 mm. wide, prominently veined “longitudinally striate,” margin scarious, tip acuminate to spinulose; Receptacle, epaleate; Disk flowers, #19, corolla, 7 mm., yellow; Pappus, plumose bristles, 6 mm.; Cypsela, many ribs (maybe 10).

Article records that use this photograph:

• North Table Loop, Jefferson County, Colorado: near Golden Cliffs Trl.
• Field Notes: Coll. No. 1553, 1 Sep 2016.

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Scanned 12 January 2018.

Article records that use this photograph:

• Field Notes: Coll. No. 1758, 31 Aug 2017.

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Photographed 12 January 2018.

Article records that use this photograph:

• Field Notes: Coll. No. 1758, 31 Aug 2017.

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Article records that use this photograph:

• Frequently Asked Questions: Brickellia.

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Photographed 30 December 2017.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Carduus nutans.
• Field Notes: Coll. No. 1711, 14 Jul 2017.

        images/IMGQ4516sm.jpg

©reserved Denver Botanic Gardens URL: http://swbiodiversity.org/seinet/collections/individual/index.php?occid=3057231&clid=0 Accessed 11 April 2020. Usage Rights: CC0 1.0 (Public-domain)

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Carthamus lanatus.

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Grid is 10x10 to the inch.

Article records that use this photograph:

• Field Notes: Coll. No. 190.

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Scanned 17 December 2015.

Coll. No. 1233, 20 Jul 2015, characters observed: Biennial/Perennial herb, to 50 cm.; Leaves, cauline, alternate, 30 mm. × 12 mm. wide, pinnately lobed, much reduced and entire above, spine-tipped, margins not spiny; Inflorescence, heads borne singly, flowers of one kind; Involucre, 10 mm.; Phyllaries, 4+ series, graduated, 3.5-10.0 mm., all spine tipped, outer and middle with marginal fringe spines; Receptacle, flat, epaleate, bristly; Disk flowers, inner bisexual, Corolla, tube 7.5 mm. + lobes 3 mm., white; Pappus, 0, or very thin ring of scales.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Centaurea diffusa.
• Field Notes: Coll. No. 1233, 20 Jul 2015.

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Scanned 17 December 2015.

Coll. No. 1233, 20 Jul 2015, characters observed: Biennial/Perennial herb, to 50 cm.; Leaves, cauline, alternate, 30 mm. × 12 mm. wide, pinnately lobed, much reduced and entire above, spine-tipped, margins not spiny; Inflorescence, heads borne singly, flowers of one kind; Involucre, 10 mm.; Phyllaries, 4+ series, graduated, 3.5-10.0 mm., all spine tipped, outer and middle with marginal fringe spines; Receptacle, flat, epaleate, bristly; Disk flowers, inner bisexual, Corolla, tube 7.5 mm. + lobes 3 mm., white; Pappus, 0, or very thin ring of scales.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Centaurea diffusa.
• “Tilting Mesa Cut-Off,” North Table Mountain Park, Jefferson County, Colorado: near saddle.
• Field Notes: Coll. No. 1233, 20 Jul 2015.

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Scanned 10 July 2013.

Article records that use this photograph:

• Bicycle Spur, Alameda, Alameda County, CA: at Coll. No. 880.
• Field Notes: Coll. No. 880.

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Photographed 10 August 2012.

Article records that use this photograph:

• Bicycle Spur, Alameda, Alameda County, CA: at Coll. No. 880.
• Field Notes: Coll. No. 880.

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Photographed 5 August 2012.

The plants are in the center of the photo, just to the right of the water bottle.

Article records that use this photograph:

• Veterans Court, City of Alameda, Alameda County, California: near bicycle bridge.
• Field Notes: Coll. No. 878.

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Photographed 5 August 2012.

Article records that use this photograph:

• Veterans Court, City of Alameda, Alameda County, California: at Coll. No. 878.
• Field Notes: Coll. No. 878.

        images/IMGQ1239sm.jpg

Photographed 5 August 2012.

Article records that use this photograph:

• Veterans Court, City of Alameda, Alameda County, California: at Coll. No. 878.
• Field Notes: Coll. No. 878.

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Photographed 5 August 2012.

Article records that use this photograph:

• Veterans Court, City of Alameda, Alameda County, California: at Coll. No. 878.
• Field Notes: Coll. No. 878.

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Scanned 10 July 2013.

Article records that use this photograph:

• Veterans Court, City of Alameda, Alameda County, California: at Coll. No. 878.
• Field Notes: Coll. No. 878.

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Scanned 27 October 2013.

Coll. No. 348, 20 April 2004, characters observed while keying: Annual, to 20 cm., tap-rooted; Leaves, basal and cauline, to 40 mm., finely pinnately 2° divided, margins not spiny; Inflorescence, no strap-shaped flowers, flowers of 1 kind; Phyllaries, in 2 overlapping series; Receptacle paleate, 9 mm., appearing ≥1 mm. above buds; Pappus of short, 0.6 mm., scales.

Article records that use this photograph:

• Kingston Road - Eastern Mojave Desert: Winters Pass.
• Field Notes: Coll. No. 348.

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Scanned 27 October 2013.

Palea are exceeding flower buds.

Coll. No. 348, 20 April 2004, characters observed while keying: Annual, to 20 cm., tap-rooted; Leaves, basal and cauline, to 40 mm., finely pinnately 2° divided, margins not spiny; Inflorescence, no strap-shaped flowers, flowers of 1 kind; Phyllaries, in 2 overlapping series; Receptacle paleate, 9 mm., appearing ≥1 mm. above buds; Pappus of short, 0.6 mm., scales.

Article records that use this photograph:

• Kingston Road - Eastern Mojave Desert: Winters Pass.
• Field Notes: Coll. No. 348.
• Glossary: palea.

        images/TAS003480Head.jpg

Scanned 27 Sep 2011. Scale in background has 1 mm divisions. Head on right has been partially dissected to aid identification. Collection locality is Adobe Hills Spillway, Mono County, California.

Location records that use this photograph:

• Adobe Hills Spillway, Mono County, California

Article records that use this photograph:

• Dobie Meadows Road, Mono County, California: at Adobe Hills Spillway.
• Field Notes: Coll. No. 620, 29 Jun 2010..

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Scanned 27 Sep 2011. Collection locality is Adobe Hills Spillway, Mono County, California.

Location records that use this photograph:

• Adobe Hills Spillway, Mono County, California

Article records that use this photograph:

• Dobie Meadows Road, Mono County, California: at Adobe Hills Spillway.
• Field Notes: Coll. No. 620, 29 Jun 2010..

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Photographed 18 June 2012, on the alluvial bench above Tioga Lodge.

Article records that use this photograph:

• Field Notes: Coll. No. 829.
• U. S. Highway 395: n. of Tioga Lodge.

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Photographed 26 January 2013.

Article records that use this photograph:

• Field Notes: Coll. No. 829.
• U. S. Highway 395: n. of Tioga Lodge.

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Scanned 19 Jan 2012.

Coll. No. 764.1, 20 Jan 2012, characters observed while keying: Annual, maybe biennial, not thistle-like, not scapose, proximal hairs cobwebby; Leaves basal and cauline, deeply lobed, margins rolled (i.e., leaf blade not flat); Heads 20+; Receptacle not chaffy; Phyllaries in 2+ series, 7-9 mm x 2 mm wide; Flowers yellow, no ray flowers; Achenes pappus of scales, one series, not awl-shaped.

Article records that use this photograph:

• Goat Ranch Cutoff, Mono County, California: near Rancheria Gulch.
• Field Notes: Coll. No. 764.1, 19 Jun 2011.

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My collection #330. Photograph taken April 20, 2004.

Article records that use this photograph:

• Kingston Road - Eastern Mojave Desert: near Excelsior Mine Rd.
• Field Notes: Coll. No. 330.

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Scanned 24 October 2013.

Coll. No. 330, 20 Apr 2004, characters observed while keying: Annual, tap-rooted, to 35 cm.; Stem variously branched, proximal hairs 0, distally minutely glandular; Leaves, alternate, to 7 cm., deeply pinnately lobed below to entire above; Inflorescence, single heads on 5 cm. peduncles, flowers of two kinds in same heads, outer corollas not strap-shaped, head radiant; Phyllaries in 2+ series, ±equal length, outermost sometimes subtending a ray flower, without embedded oil gland, margin green, tip acute; Pappus of scales, few, one long (6 mm.) appearing among disc flowers remainder short, margins ragged; Corollas white; Fruit, 6 mm., dark brown.

Article records that use this photograph:

• Kingston Road - Eastern Mojave Desert: near Excelsior Mine Rd.
• Field Notes: Coll. No. 330.

        images/TAS003300Head.jpg

Scanned 24 October 2013.

Coll. No. 330, 20 Apr 2004, characters observed while keying: Annual, tap-rooted, to 35 cm.; Stem variously branched, proximal hairs 0, distally minutely glandular; Leaves, alternate, to 7 cm., deeply pinnately lobed below to entire above; Inflorescence, single heads on 5 cm. peduncles, flowers of two kinds in same heads, outer corollas not strap-shaped, head radiant; Phyllaries in 2+ series, ±equal length, outermost sometimes subtending a ray flower, without embedded oil gland, margin green, tip acute; Pappus of scales, few, one long (6 mm.) appearing among disc flowers remainder short, margins ragged; Corollas white; Fruit, 6 mm., dark brown.

Article records that use this photograph:

• Kingston Road - Eastern Mojave Desert: near Excelsior Mine Rd.
• Field Notes: Coll. No. 330.

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Scanned 7 November 2013.

Left to right:

1. Two outer phyllaries.
2. Two inner phyllaries.
3. One outer flower.
4. Four inner flowers.

Coll. No. 122, 29 April 1997, characters observed while keying: Annual, tap-rooted, to 15 cm.; Stems, leaves, and phyllaries all wooly; Leaves, alternate, not decurrent, 1°(2°) pinnate lobed; Inflorescence, none of the flowers with strap-shaped corollas, flowers of 1 kind, heads discoid, peduncled, cylindric to obconic; Phyllaries, in 2 series, ±equal (outer ≤ inner), ≤7 mm., green, margins not scarious; Receptacle, epaleate; Pappus, of well-developed flat scales, #4, ≤3 mm.; Corollas, yellow, open during day.

This keyed out fairly easily to Chaenactis glabriuscula var. glabriuscula by way of TJM2 Asteraceae Group 7. However, the location of this collection is way out of range for that taxon. There is one other collection of this taxon from the eastern Mojave (H. S. Reed, s.n., May 5, 1935, Wheaton Springs, UC914160) for which the determination or location has been questioned. If the corolla color is described as “… rarely pale yellow …” then the Chaenactis key takes one to a determination of “Chaenactis hybrid.” However, the yellow color of the corolla looks strong to me, which pretty much forces one into Chaenactis glabriuscula.

Article records that use this photograph:

• Field Notes: Coll. No. 122.

        images/TAS001220FlPts.jpg

Scanned 7 November 2013.

Coll. No. 122, 29 April 1997, characters observed while keying: Annual, tap-rooted, to 15 cm.; Stems, leaves, and phyllaries all wooly; Leaves, alternate, not decurrent, 1°(2°) pinnate lobed; Inflorescence, none of the flowers with strap-shaped corollas, flowers of 1 kind, heads discoid, peduncled, cylindric to obconic; Phyllaries, in 2 series, ±equal (outer ≤ inner), ≤7 mm., green, margins not scarious; Receptacle, epaleate; Pappus, of well-developed flat scales, #4, ≤3 mm.; Corollas, yellow, open during day.

This keyed out fairly easily to Chaenactis glabriuscula var. glabriuscula by way of TJM2 Asteraceae Group 7. However, the location of this collection is way out of range for that taxon. There is one other collection of this taxon from the eastern Mojave (H. S. Reed, s.n., May 5, 1935, Wheaton Springs, UC914160) for which the determination or location has been questioned. If the corolla color is described as “... rarely pale yellow ...” then the Chaenactis key takes one to a determination of “Chaenactis hybrid.” However, the yellow color of the corolla looks strong to me, which pretty much forces one into Chaenactis glabriuscula.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 122.

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Grid is 10x10 to the inch.

Article records that use this photograph:

• Field Notes: Coll. No. 221.

        images/TAS002210oview.jpg

Grid is 10x10 to the inch.

Article records that use this photograph:

• Field Notes: Coll. No. 221.

        images/TAS002210infl.jpg

Scanned 29 October 2013.

Coll. No. 265, 1 Sep 2000, characters observed while keying: Woody perennial shrub, to 30 cm.; Stem, young, puberulent (not tomentose); Leaves, alternate, lanceolate, entire, without embedded oil glands, with short stalked glands; Inflorescence, none of the flowers with strap-shaped corollas, flowers of 1 kind; Involucre, obconic, 10 mm.; Phyllaries, graduated in 5 series, arranged in vertical ranks, without embedded oil glands; Corolla, yellow; Pappus of well-developed bristles, #many, Style appendages ±=stigmatic portion; Fruit with few glandular hairs.

Article records that use this photograph:

• Wild Horse Canyon Road - Mojave National Preserve: near Wild Horse Mesa.
• Field Notes: Coll. No. 265.

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Scanned August 11, 2013.

Coll. No. 887, 22 Aug 2012, characters observed while keying: Perennial shrub, to 1 m., juice with latex, not thistle-like; Stem generally glabrous (very few hairs), young stem few hairs (but not tomentose); Leaves alternate, linear, 30 mm. x 0.8-1.2 mm. wide, margins entire, not ciliate, adaxial surface with tangled hairs, oil glands 0; Heads, conical, not overtopped by distal leaves, ray flowers 0, disc flowers present; Involucre obconic, 8-9 mm.; Phyllaries in 3 distinct vertical ranks, graduated in size, lower << rest of involucre, opaque, tips acute, oil glands 0; Flowers 6; Pappus of many bristles, ±cylindric; Corollas yellow; Style, appendages (2.0 mm.) > stigmatic portion (1.6 mm.); Fruit moderately hairy.

Article records that use this photograph:

• Forest Road 1N02 "Sagehen Meadows Road," Mono County, California: at Sagehen Mdw.
• Field Notes: Coll. No. 887.

        images/TAS008870Infl.jpg

Scanned 15 August 2013.

Coll. No. 887, 22 Aug 2012, characters observed while keying: Perennial shrub, to 1 m., juice with latex, not thistle-like; Stem generally glabrous (very few hairs), young stem few hairs (but not tomentose); Leaves alternate, linear, 30 mm. x 0.8-1.2 mm. wide, margins entire, not ciliate, adaxial surface with tangled hairs, oil glands 0; Heads, conical, not overtopped by distal leaves, ray flowers 0, disc flowers present; Involucre obconic, 8-9 mm.; Phyllaries in 3 distinct vertical ranks, graduated in size, lower << rest of involucre, opaque, tips acute, oil glands 0; Flowers 6; Pappus of many bristles, ±cylindric; Corollas yellow; Style, appendages (2.0 mm.) > stigmatic portion (1.6 mm.); Fruit moderately hairy.

Article records that use this photograph:

• Forest Road 1N02 "Sagehen Meadows Road," Mono County, California: at Sagehen Mdw.
• Field Notes: Coll. No. 887.
• Glossary: style appendage.

        images/TAS008870Fl.jpg

Photograph taken 17 August 2010.

Article records that use this photograph:

• Field Notes: 16 Aug 2010.

        images/IMGP0803sm.jpg

Scanned 15 Nov 2011.

Coll. No. 705, 15 Nov 2011, characters observed while keyin: Perennial shrub; Stems woody at base, juice latex (?); Leaves entire, lanceolate, twisted > 360°, margin sparsely ciliate; Phyllaries 3 unequal series, tending to be aligned in vertical ranks, not transparent or scarious; Flowers all disc flowers, yellow; Achenes hairy, pappus of hairs/bristles "capillary bristles" (not ornamented).

Article records that use this photograph:

• Field Notes: 16 Aug 2010.

        images/TAS007050Oview.jpg

Scanned 17 Jan 2014.

Coll. No. 150, 3 Oct 1997, characters observed: Perennial shrub, to 1 m.; Stem glabrous (few stray hairs); Leaves, alternate, linear, to 24 mm. × 1.5 mm. wide, ±straight, glandless, glabrous; Inflorescence, heads exceeding distal leaves, flowers of 1 kind, no strap-shaped corollas; Involucre, 9 mm.; Phyllaries, graduated in several series, not in vertical ranks, unequal, narrowly ovate, without embedded oil glands; Receptacle, epaleate; Flowers 5; Corolla, yellow, tube 3.5 mm. + throat 0.5 mm. + fused lobes 3.0 mm. + free lobes 0.5 mm. = 7.5 mm., gradually expanded above the tube; Pappus, well-developed, bristles, #many; Pistil, 6.0 mm. + stigmatic portion 1.2 mm. + appendages 1.0 mm. = 8.2 mm.; Fruit, moderately hairy.

Article records that use this photograph:

• Black Canyon Road - Mojave National Preserve: at Holliman Well.
• Field Notes: Coll. No. 150.

        images/TAS001500Oview.jpg

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Cichorium intybus.
• Plainview Road, Jefferson County, Colorado.: near coll loc west.
• Field Notes: Coll. No. 1223, 16 Jul 2015.

        images/IMGQ1274sm.jpg

Photographed 12 July 2015.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Cirsium arvense.
• Survey Field Road, Golden, Jefferson County, Colorado: 11000.
• Field Notes: Coll. No. 1200, 12 Jul 2015.

        images/IMGQ1245sm.jpg

Scanned 10 January 2017.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 80 m. northwest; 16.3 km. north northwest of the GNIS location of Golden. 39.8977°N, 105.2687°W. WGS 1984 Elev. 1935 m. Mixed grasses and forbs, just below the ponderosa pine zone. Lightly grazed in 2016.

Coll. No. 1512, 24 July 2016, characters observed: Annual, to 70 cm., tap-rooted; Leaves, cauline, alternate, sessile but not obviously decurrent, 85 mm. × 20 mm. wide, margin sinuate, spiny, adaxial thinly tomentose, abaxial tomentose; Inflorescence, panicle(?); Heads, many, 30±, 15 mm. × 8 mm. dia., disk flowers only, dioecious, staminate heads, pappus < corolla, pistillate heads, pappus > corolla; Phyllaries, many (6-7) series, outer 3 mm. × 1.5 mm. wide, inner 15 mm. × 1 mm. wide, dark dorsal ridge, tips, spinulose, reflexed; Receptacle, soft bristles, 10 mm.; Pappus, plumose bristles.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Cirsium arvense.
• Field Notes: Coll. No. 1512, 24 Jul 2016.

        images/TAS015120Infl.jpg

Scanned 27 October 2013.

Coll. No. 354, 20 April 2004, characters observed while keying: Annual or biennial, to 60 cm., Stem, tomentose, ribbed; Leaves, alternate, 40 mm., sessile, not clasping, lanceolate, spiny lobed (not compound), both surfaces wooly; Inflorescence, solitary heads, no flowers with strap-shaped corollas, flowers of 1 kind; Involucre to 25 mm. × 60 mm. wide; Phyllaries, in many series, abaxial face without, or with very small, resinous ridge, outer margins variously minutely decorated (with hairs, spines, and cilia), inner entire, tip spines 8 mm.; Receptacle, simple bristles, 4 mm.; Corolla, tube 13 mm. + throat 7 mm. + lobes 9 mm.

Article records that use this photograph:

• Kingston Road - Eastern Mojave Desert: at fence line.
• Field Notes: Coll. No. 354.

        images/TAS003540Oview.jpg

Photographed 24 July 2013.

Location records that use this photograph:

• Walker Creek (Lower), Mono County, California

Article records that use this photograph:

• Old Highway 395, Mono County, California: at Walker Ck.
• Field Notes: 24 Jul 2013.

        images/IMG_1609sm.jpg

Photographed 21 June 2012.

Location records that use this photograph:

• Bridgeport Canyon, Mono County, California

Article records that use this photograph:

• Coyote Springs Road, Mono County, California: in Bridgeport Cyn.
• Field Notes: Coll. No. 855.

        images/IMG30334sm.jpg

Scanned 2 July 2013.

Location records that use this photograph:

• Bridgeport Canyon, Mono County, California

Article records that use this photograph:

• Coyote Springs Road, Mono County, California: in Bridgeport Cyn.
• Field Notes: Coll. No. 855.

        images/TAS008550.jpg

Photographed 28 June 2018.

Location records that use this photograph:

• Horseshoe Basin, Summit County, Colorado

Article records that use this photograph:

• County Road 260, Forest Road 214, “Peru Creek Road,” Summit County, Colorado: Vidler Tunnel.
• Field Notes: 28 Jun 2018.

        images/IMG50397sm.jpg

Photographed 19 December 2016.

Coll. No. 1460, 27 June 2016, characters observed: Perennial thistle, to 30 cm., stout tap root; Stem, leafy, 20 cm.; Leaves, basal and cauline, basal, petiole 25 mm. + blade 180 mm. × 55 mm. wide, oblanceolate, pinnately lobed more than half-way to mid-rib, cauline, reduced above, decurrent 5 mm., 45 mm. × 14 mm. wide, lanceolate, surface, adaxial, thinly tomentose, abaxial, tomentose, margins, spiny; Head, 35 mm. × 40 mm. wide, indented around top of peduncle; Phyllaries, many (7?) series, 13 mm. × 3.5 mm. wide, + robust spine 5-6 mm., body dark dorsal ridge, outer and middle reflexed; Flowers, 1 kind; Disk flowers, 25-36 mm., corolla pink-purple; Pappus, plumose bristles; Cypsela, 5 mm., apical collar unremarkable.

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: near coll loc.
• Field Notes: Coll. No. 1460, 27 Jun 2016.

        images/IMGQ3470sm.jpg

Scanned 29 Dec 2014.

The things to see in this image are appressed prickles on the adaxial surface of the leaf.

Article records that use this photograph:

• Field Notes: Coll. No. 1035.

        images/TAS010350Lf.jpg

©reserved Denver Botanic Gardens URL: http://swbiodiversity.org/seinet/collections/individual/index.php?occid=13288130&clid=0 Accessed 5 May 2020. Usage Rights: CC0 1.0 (Public-domain).

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Conyza canadensis.

        images/280Concan_Ratzloff.jpg

Photographed 7 Nov 2011.

Coll. No. 687, 7 Nov 2011, characters observed while keying: Perennial 6 dm tall; Leaves alternate, pinnately lobed; Infloresence a panicle with 7-19 heads; Involucre 10 mm long; Phyllaries in 2 series, 4 outer << inner, 4 inner black tipped; Receptacle naked; Flowers unable to discern color or ray vs. disk; Achenes 6, pappus of bristles.

Article records that use this photograph:

• Field Notes: Coll. No. 687.

        images/TAS006870Oview.jpg

Scanned 22 November 2018.

Coll. No. 1894, 28 May 2018, characters observed: Perennial, herb, to 25 cm., taprooted; Stem, green, tomentose, glandular, no bristles; Leaves, basal and cauline, alternate, petiole 20 mm. + blade 56 mm. × 17 mm. wide, reduced distally, pinnately lobed nearly to mid-rib, segments deltoid, tomentose, glandular; Inflorescence, heads #3 per stem, showy, >leaves; Peduncles, 23 mm.; Involucre, 12 mm. × 12 mm. wide, cyindric, tomentose; Phyllaries, 2 graduated series, 3.5 mm. &tmes; 2 mm. wide, deltoid, 12.5 mm. × 3 mm. wide, lanceolate, ±flat, tomentose, gland-tipped black bristles evenly distributed; Receptacle, epaleate; Ray flowers (ligules), many, tube 6 mm. + blade 12.5 mm. × 2.4 mm. wide, yellow; Pappus, 9 mm. well-developed, bristles, ±equal, smooth; Fruit, 2 mm. × 1.3 mm. wide, brown, glabrous.

Article records that use this photograph:

• Field Notes: Coll. No. 1894, 28 May 2018.

        images/TAS018940Hd.jpg

Scanned 22 November 2018.

Coll. No. 1894, 28 May 2018, characters observed: Perennial, herb, to 25 cm., taprooted; Stem, green, tomentose, glandular, no bristles; Leaves, basal and cauline, alternate, petiole 20 mm. + blade 56 mm. × 17 mm. wide, reduced distally, pinnately lobed nearly to mid-rib, segments deltoid, tomentose, glandular; Inflorescence, heads #3 per stem, showy, >leaves; Peduncles, 23 mm.; Involucre, 12 mm. × 12 mm. wide, cyindric, tomentose; Phyllaries, 2 graduated series, 3.5 mm. &tmes; 2 mm. wide, deltoid, 12.5 mm. × 3 mm. wide, lanceolate, ±flat, tomentose, gland-tipped black bristles evenly distributed; Receptacle, epaleate; Ray flowers (ligules), many, tube 6 mm. + blade 12.5 mm. × 2.4 mm. wide, yellow; Pappus, 9 mm. well-developed, bristles, ±equal, smooth; Fruit, 2 mm. × 1.3 mm. wide, brown, glabrous.

Article records that use this photograph:

• Field Notes: Coll. No. 1894, 28 May 2018.

        images/IMGQ4773sm.jpg

Photographed 23 September 2015.

Coll. No. 1299, 23 Sep 2015, characters observed: Perennial herb, to 60 cm.; Stem erect, stipitate-glandular, more dense above; Leaves, basal, unknown, cauline, alternate, sessile, 50 mm. × 4-5 mm. wide, reduced above, lance-linear, spinulose toothed; Inflorescence, panicle, heads borne singly on pedicels 10-20 mm.; Involucre, 8 mm. × 12 mm. wide; Phyllaries, 5+ series, imbricate, chartaceous below, green and stipitate-glandular above, tips, acuminate, reflexed; Receptacle, epaleate; Flowers of 2 kinds; Rays, fertile, corolla, tube 4.5 mm. + laminae 10 mm. × 1.5 mm. wide, spatulate, blue; Disk flowers, corolla, 6 mm., yellow; Pappus, capillary bristles, 6 mm.; Cypsela, 3 mm., hairy.

Location records that use this photograph:

• Tin Cup Ridge, Jefferson County, Colorado

Article records that use this photograph:

• Tin Cup Ridge (social trail), Jefferson County, Colorado: Coll. No. 1299, 23 Sep 2015.
• Field Notes: Coll. No. 1299, 23 Sep 2015.

        images/IMGQ1672sm.jpg

Photographed 22 January 2016.

Coll. No. 1299, 23 Sep 2015, characters observed: Perennial herb, to 60 cm.; Stem erect, stipitate-glandular, more dense above; Leaves, basal, unknown, cauline, alternate, sessile, 50 mm. × 4-5 mm. wide, reduced above, lance-linear, spinulose toothed; Inflorescence, panicle, heads borne singly on pedicels 10-20 mm.; Involucre, 8 mm. × 12 mm. wide; Phyllaries, 5+ series, imbricate, chartaceous below, green and stipitate-glandular above, tips, acuminate, reflexed; Receptacle, epaleate; Flowers of 2 kinds; Rays, fertile, corolla, tube 4.5 mm. + laminae 10 mm. × 1.5 mm. wide, spatulate, blue; Disk flowers, corolla, 6 mm., yellow; Pappus, capillary bristles, 6 mm.; Cypsela, 3 mm., hairy.

Article records that use this photograph:

• Field Notes: Coll. No. 1299, 23 Sep 2015.

        images/IMGQ1911sm.jpg

Photographed 22 January 2016.

Coll. No. 1299, 23 Sep 2015, characters observed: Perennial herb, to 60 cm.; Stem erect, stipitate-glandular, more dense above; Leaves, basal, unknown, cauline, alternate, sessile, 50 mm. × 4-5 mm. wide, reduced above, lance-linear, spinulose toothed; Inflorescence, panicle, heads borne singly on pedicels 10-20 mm.; Involucre, 8 mm. × 12 mm. wide; Phyllaries, 5+ series, imbricate, chartaceous below, green and stipitate-glandular above, tips, acuminate, reflexed; Receptacle, epaleate; Flowers of 2 kinds; Rays, fertile, corolla, tube 4.5 mm. + laminae 10 mm. × 1.5 mm. wide, spatulate, blue; Disk flowers, corolla, 6 mm., yellow; Pappus, capillary bristles, 6 mm.; Cypsela, 3 mm., hairy.

Location records that use this photograph:

• Tin Cup Ridge, Jefferson County, Colorado

Article records that use this photograph:

• Tin Cup Ridge (social trail), Jefferson County, Colorado: Coll. No. 1299, 23 Sep 2015.
• Field Notes: Coll. No. 1299, 23 Sep 2015.

        images/TAS012990Head.jpg

Photographed 13 July 2013.

Location records that use this photograph:

• Jean Sweeney Open Space Preserve, Alameda County, California

Article records that use this photograph:

• Field Notes: 201307130010.

        images/IMG_1533sm.jpg

Photographed 4 October 2012.

Article records that use this photograph:

• Veterans Court, City of Alameda, Alameda County, California: Coll. No. 909.
• Field Notes: Coll. No. 909, 3 Oct 2012.

        images/IMGQ1285sm.jpg

Photographed 4 October 2012.

Article records that use this photograph:

• Veterans Court, City of Alameda, Alameda County, California: Coll. No. 909.
• Field Notes: Coll. No. 909, 3 Oct 2012.

        images/IMG30728sm.jpg

Scanned 20 January 2017.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, on North Table Loop trail, at the fenceline of the Williams parcel, 0.88 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. 39.796°N, 105.2055°W. WGS 1984 Elev. 1840 m. On edge of private horse pasture.

Coll. No. 1540, 18 August 2016, characters observed: Annual, to 15 cm., tap-rooted, most surfaces with scattered 0.4 mm. elliptical brown oil glands; Leaves, cauline, 28 mm. × 12 mm. wide, reduced above, pinnafitid, ±sessile; Heads, borne singly on leafy stems; Phyllaries, 2+ graduated series, 3 mm. × 1 mm. wide, lanceolate, to 6 mm. × 2.7 mm. wide, elliptic, 5-9 brown oil glands; Receptacle, epaleate; Flowers, 1 kind; Disk flowers, 2.8 mm., yellow; Pappus, scales, dissected to appear to be bristles, 3 mm.; Cypsela, 4 mm., black. Native roadside weed.

Article records that use this photograph:

• Field Notes: Coll. No. 1540, 18 Aug 2016.

        images/TAS015400Infl.jpg

Scanned 20 January 2017.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, on North Table Loop trail, at the fenceline of the Williams parcel, 0.88 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. 39.796°N, 105.2055°W. WGS 1984 Elev. 1840 m. On edge of private horse pasture.

Coll. No. 1540, 18 August 2016, characters observed: Annual, to 15 cm., tap-rooted, most surfaces with scattered 0.4 mm. elliptical brown oil glands; Leaves, cauline, 28 mm. × 12 mm. wide, reduced above, pinnafitid, ±sessile; Heads, borne singly on leafy stems; Phyllaries, 2+ graduated series, 3 mm. × 1 mm. wide, lanceolate, to 6 mm. × 2.7 mm. wide, elliptic, 5-9 brown oil glands; Receptacle, epaleate; Flowers, 1 kind; Disk flowers, 2.8 mm., yellow; Pappus, scales, dissected to appear to be bristles, 3 mm.; Cypsela, 4 mm., black. Native roadside weed.

Article records that use this photograph:

• North Table Loop, Jefferson County, Colorado: near horse pasture.
• Field Notes: Coll. No. 1540, 18 Aug 2016.

        images/TAS015400Oview.jpg

Photograph taken 16 June 2011.

Article records that use this photograph:

• Inyo Forest Road 1N23, Inyo National Forest, Mono County, California: near gravel pit.
• Field Notes: 16 Jun 2011.
• A Checklist Flora of the Mono Lake Basin, Mono County, California and Mineral County, Nevada.: Eatonella nivea.

        images/IMGQ1000sm.jpg

Photograph taken 21 June 2011.

Cathy Rose, left, and Cheryl, right, show us the locality and habitat of Eatonella nivea on Deer Spring Road. There were 8 plants on the outside of the road berm in front of them, and we found one plant on the other side of the road.

Article records that use this photograph:

• Deer Spring Road, Mono County, California: at locality.
• Field Notes: 21 Jun 2011.

        images/IMG_1996sm.jpg

Photographed 11 Sep 2011.

Article records that use this photograph:

• Inyo Forest Road 1N23, Inyo National Forest, Mono County, California: near gravel pit.
• Field Notes: Coll. No. 801, 11 Sep 2011..
• A Checklist Flora of the Mono Lake Basin, Mono County, California and Mineral County, Nevada.: Eatonella nivea.

        images/IMG_2633sm.jpg

Photograph taken 16 June 2011.

Article records that use this photograph:

• Inyo Forest Road 1N23, Inyo National Forest, Mono County, California: near gravel pit.
• Field Notes: 16 Jun 2011.

        images/IMG_1918sm.jpg

Photographed 23 June 2015.

Article records that use this photograph:

• Inyo Forest Road 1N23, Inyo National Forest, Mono County, California: near gravel pit.
• Field Notes: 23 Jun 2015.

        images/IMGQ1056sm.jpg

Scanned 15 October 2013. Determination tentative.

Article records that use this photograph:

• Black Canyon Road - Mojave National Preserve: Woods Mtns Petroglyphs.
• Field Notes: Coll. No. 2.4.

        images/TAS000024a.jpg

Scanned 16 October 2013.

Coll. No. 4.2, 16 Apr 1993, characters observed while keying: Perennial herb or subshrub, to 30 cm.; Hairs short white spreading, not glandular; Leaves, ?basal and cauline, generally alternate (can superficially appear opposite), abaxially strigose; Inflorescence, heads solitary, flowers of 2 kinds; Phyllaries in 2 series, outer 8 mm. × 1.8 mm. wide, inner slightly smaller, sometimes partially fused to ray flowers, without embedded oil glands; Receptacle paleate, enclosing disc ovaries; Pappus a low crown of scales on ray flowers and well-developed scales on disc flowers; Ray, yellow, blade elliptical, broad, 12 mm. ×6.5 mm., sterile; Fruit, compressed, margin thin, should be ciliate but unable to see in this specimen.

Article records that use this photograph:

• Black Canyon Road - Mojave National Preserve: Woods Mtns Petroglyphs.
• Field Notes: Coll. No. 4.2.

        images/TAS000042.jpg

Scanned 27 October 2013.

Coll. No. 92, 29 April 1997, characters observed while keying: Woody perennial, to 50 cm.; Stems erect; Leaves, alternate throughout, entire, glabrous, dotten with glands in sunken pits, resinous; Inflorescence, solitary heads on 35 mm. peduncles, some flowers with strap-shaped corollas, head radiate, composed of 2 kinds of flowers; Phyllaries, in 2+ overlapping series, ±equal in length, 6 mm. × 2.7 mm. wide, margins transparent, outer without oil glands, tips acuminate; Receptacle epaleate; Pappus of many well-developed bristles on ray and disc flowers, ±cylindric; Corolla, ray and disc, yellow.

Article records that use this photograph:

• Wild Horse Canyon Road - Mojave National Preserve: near Wild Horse Mesa.
• Field Notes: Coll. No. 92.

        images/TAS000920Oview.jpg

Scanned 31 October 2017.

Coll. No. 1581, 18 April 2017, characters observed: Low-growing perennial subshrub, to 15 cm., woody at base; Twigs, green-striate, glandular-punctate, becoming white-scaly with age; Leaves, alternate, subsessile, 20 mm. × 2 mm. wide, margins rolled, glandular punctate, few white hairs, becoming white-scaly in age; Inflorescence, heads borne singly; Involucre, 10 mm. × 15 mm wide; Phyllaries, 2+ series, graduated, 6-10 mm. × 1.5-1.8 mm wide, base thick, center green, mid-vein prominent, short-stalked glandular, margin variously chartaceous entire to irregularly small-toothed; Receptacle, epaleate; Pappus, 1 series of bristles, 6 mm.; Rays, fertile, #6-8, tube 5 mm. + blade 12 mm. × 3.6 mm. wide, yellow; Disc flowers, #18-20, yellow; Style, stigma 0.7 mm., appendage 1.0 mm.; Cypsela, 4 mm., hairy. The phyllaries of this collection vary from the Jepson (2012) key and description by virtue of being graduated in size and much variation in the phyllary margins. I don't see any reason to think this might be a hybrid with E. cooperi.

Article records that use this photograph:

• Kingston Road - Eastern Mojave Desert: at cherry stem.
• Field Notes: Coll. No. 1581, 18 Apr 2017.

        images/TAS015810Oview.jpg

Scanned 19 Jan 2014.

Coll. No. 207, 2 April 2000, characters observed: Perennial, herb, to 30 cm.; Leaves, alternate, some in clusters, linear, 20 mm. × 1 mm. wide, glandular-sticky, regularly spaced resin pits; Inflorescence, some flowers with strap-shaped corollas, head composed of two kinds of flowers; Receptacle, epaleate; Phyllaries, in 5 not-fully-overlapping series, graduated in size, 6-11 mm. × 1.5-2.5 mm. wide, mid phyllary vein prominent throughout length though not raised, margin fringed; Rays, 7, yellow, 22-23 mm. × 5 mm. wide, 0-2 appendages to 14 mm.; Disk flowers, ±20; Pappus of well-developed bristles on both ray and disk flowers, ± cylindric; Pistil, style 8 mm. + stigma 1.5 mm. + appendages 1.0 mm.; Fruit, dense silky hairy. This collection is determined as Ericameria linearifolia, although it does not key there, primarily because the phyllaries are definitely not equal, whereas E. linearifolia requires phyllaries that are ±equal.

Article records that use this photograph:

• Field Notes: Coll. No. 207.

        images/TAS002070Flb.jpg

Scanned 19 Jan 2014.

Coll. No. 207, 2 April 2000, characters observed: Perennial, herb, to 30 cm.; Leaves, alternate, some in clusters, linear, 20 mm. × 1 mm. wide, glandular-sticky, regularly spaced resin pits; Inflorescence, some flowers with strap-shaped corollas, head composed of two kinds of flowers; Receptacle, epaleate; Phyllaries, in 5 not-fully-overlapping series, graduated in size, 6-11 mm. × 1.5-2.5 mm. wide, mid phyllary vein prominent throughout length though not raised, margin fringed; Rays, 7, yellow, 22-23 mm. × 5 mm. wide, 0-2 appendages to 14 mm.; Disk flowers, ±20; Pappus of well-developed bristles on both ray and disk flowers, ± cylindric; Pistil, style 8 mm. + stigma 1.5 mm. + appendages 1.0 mm.; Fruit, dense silky hairy. This collection is determined as Ericameria linearifolia, although it does not key there, primarily because the phyllaries are definitely not equal, whereas E. linearifolia requires phyllaries that are ±equal.

Article records that use this photograph:

• New Idria Road - San Benito County: near New Idria.
• Field Notes: Coll. No. 207.

        images/TAS002070Oview.jpg

Photographed 23 May 2018.

Article records that use this photograph:

• Field Notes: 23 May 2018.

        images/IMG50232sm.jpg

Article records that use this photograph:

• How did rubber rabbitbrush get that long scientific name?: Britton&Brown, 1898.

        images/BrittonNLB1898_3662.jpg

Photographed 12 September 2019.

Location records that use this photograph:

• North Washington Open Space, Jefferson County, Colorado

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Ericameria nauseosa graveolens.
• Field Notes: Coll. No. 2229, 12 Sep 2019.

        images/20190912_102546sm.jpg

Photographed 17 September 2014.

This collection was made just below the Mitchell Elementary School yard, at the intersection of Illinois Street and 4th Street.

Collection No. 1063, 17 September 2014, characters observed: Perennial shrub, woody at base, to 1 m., sprawling to erect; Stem covered with felt-like tomentum (long hairs infiltrated with resin, must scrape with knife to expose); Leaves, alternate, lance-linear, 70 mm. × 3 mm., not twisted in the manner of some related species, upper surface tomentose, margin entire; Heads discoid (with only disk flowers), cymose at ends of branches, narrowly tubular; Involucre 8 mm., not spiny; Phyllaries in 3 vertical ranks, outer << inner, keeled, some with few short hairs; Receptacles not chaffy, but have some short (<0.5 mm.) appendages between flowers; Flowers #5; Corolla tube (i.e., petals united at base) 7.5 mm. + lobes #5, 1 mm., glabrous throughout; Ovary inferior; Pappus of bristles, 6-7 mm., white; Stamens 5; Anthers connate (united), 2 mm., acute at base; Style 11 mm., branches half-round in cross-section, stigmatic 1 mm. + appendage 2 mm., glabrous inside, uniformly short hairy on outside, tips rounded; cypselae, all similar in shape, 5 mm., short hairy;

Not known from California. In Ackerfield (2012), Asteraceae, Key 2, 15a-b, a question of how tomentose the stems and leaves are made keying tricky.

Article records that use this photograph:

• How did rubber rabbitbrush get that long scientific name?: Introduction.
• 4th Street, Golden, Jefferson County, Colorado: at Illinois.
• Illinois Street, Golden, Jefferson County, Colorado: at 4th.
• Field Notes: Coll. No. 1064.

        images/IMG40464sm.jpg

Photographed 17 September 2014.

This collection was made on Illinois Street, between 4th and 5th Streets.

Collection No. 1063, 17 September 2014, characters observed: Perennial shrub, woody at base, to 1 m., sprawling to erect; Stem covered with felt-like tomentum (long hairs infiltrated with resin, must scrape with knife to expose); Leaves, alternate, lance-linear, 70 mm. × 3 mm., not twisted in the manner of some related species, upper surface tomentose, margin entire; Heads discoid (with only disk flowers), cymose at ends of branches, narrowly tubular; Involucre 8 mm., not spiny; Phyllaries in 3 vertical ranks, outer << inner, keeled, some with few short hairs; Receptacles not chaffy, but have some short (<0.5 mm.) appendages between flowers; Flowers #5; Corolla tube (i.e., petals united at base) 7.5 mm. + lobes #5, 1 mm., glabrous throughout; Ovary inferior; Pappus of bristles, 6-7 mm., white; Stamens 5; Anthers connate (united), 2 mm., acute at base; Style 11 mm., branches half-round in cross-section, stigmatic 1 mm. + appendage 2 mm., glabrous inside, uniformly short hairy on outside, tips rounded; cypselae, all similar in shape, 5 mm., short hairy;

Not known from California. In Ackerfield (2012), Asteraceae, Key 2, 15a-b, a question of how tomentose the stems and leaves are made keying tricky.

Location records that use this photograph:

• Golden, Jefferson County, Colorado

Article records that use this photograph:

• How did rubber rabbitbrush get that long scientific name?: Introduction.
• Illinois Street, Golden, Jefferson County, Colorado: at alley.
• Field Notes: Coll. No. 1063.

        images/IMG40461sm.jpg

Collections of Chrysocoma graveolens Nuttall (Syn: Chrysocoma dracunculoides Pursh [illeg.]) = Ericameria nauseosa (Pallas ex Pursh) G. L. Nesom & G. I. Baird var. graveolens (Nutt.) Reveal & Schuyler, were made at Big Bend of the Missouri and the Cheyenne River.

We don't really know where the collection of Chrysocoma nauseosa Pursh = Ericameria nauseosa (Pallas ex Pursh) G. L. Nesom & G. I. Baird var. nauseosa, was made, but it was likely along this stretch of the Missouri River.

Article records that use this photograph:

• How did rubber rabbitbrush get that long scientific name?: Lewis&Clark.

        images/SouthDakota_Oct1804.jpg

Retrieved 23 February 2016.

URL: https://plants.jstor.org/stable/10.5555/al.ap.specimen.ph00033829

This is the holotype of Chrysocoma graveolens Nutt., which through a series of renamings became Ericameria nauseosa (Pall. Ex Pursh) G.L.Nesom & G.I.Baird var. graveolens (Nutt.) Reveal & Schuyler.

Article records that use this photograph:

• How did rubber rabbitbrush get that long scientific name?: Ericameria nauseosa graveolens.

        images/Nuttall_Holotype_Chrysocoma_graveolens.jpg

Scanned 17 March 2011. Background grid is 10 x 10 to the inch.

What I think I'm seeing here is that the stems are tomentose, except where recently split, infloresence paniculate, and the phylarries are pubescent to tomentose.

Article records that use this photograph:

• Field Notes: 2-Aug-07.

        images/TAS005130oview.jpg

Scanned 17 March 2011. Background grid is 10 x 10 to the inch.

What I think I'm seeing here is that the stems are tomentose, except where recently split, infloresence paniculate, and the phylarries are pubescent to tomentose.

Article records that use this photograph:

• Field Notes: 2-Aug-07.

        images/TAS005130det.jpg

Scanned 11 July 2013.

Coll. No. 885, 22 August 2012, characters observed while keying: Shrub, ±1 m,; Stem, tomentose through 2nd-3rd year; Leaves, 21 mm. x 2.5 mm. wide, sessile, erect, strap-shaped, entire; Involucre bell-shaped; Phyllaries, unequal, several series, but not in 5± ranks, margins thick(?), mid-ribs brown; Flowers of 1 kind, ray flowers; Receptacle epaleate; Corolla 7 mm., yellow, lobes 1 mm.; Pappus of many well-developed bristles; Style appendages (1.0 mm.) < stigma (2.2 mm.); Fruit (silky) hairy.

Article records that use this photograph:

• Forest Road 1N02 "Sagehen Meadows Road," Mono County, California: at Sagehen Mdw.
• Field Notes: Coll. No. 885.

        images/TAS008850Oview.jpg

Scanned 16 July 2013.

Article records that use this photograph:

• Forest Road 1N02 "Sagehen Meadows Road," Mono County, California: at Sagehen Mdw.
• Field Notes: Coll. No. 886.

        images/TAS008860Oview.jpg

Scanned 16 July 2013.

Article records that use this photograph:

• Forest Road 1N02 "Sagehen Meadows Road," Mono County, California: at Sagehen Mdw.
• Field Notes: Coll. No. 886.

        images/TAS008860Fl.jpg

Photographed 24 July 2013.

Article records that use this photograph:

• Old Highway 395, Mono County, California: s. of Walker Ck.
• Field Notes: Coll. No. 1025.

        images/IMG_1615sm.jpg

Scanned 5 January 2015.

The three things to see here are:

1. The fruit is hairy, which eliminates var. leiosperma.
2. The style appendages < stigma, which eliminates var. speciosa and others.
3. The corolla lobes are large (2 mm.) which eliminates var. hololeuca.

Coll. No. 1025, 24 Jul 2014, characters observed whilst keying: Perennial to 1 m., stem and leaves without round, ±evenly spaced resin-filled pits; Leaves, thread-like; Phyllaries in 4 series, 2-ranked, aligned vertically, tips erect; Rays 0; Disc flowers, corolla lobes 2 mm.; Style, stigma 2.0 mm., appendage 1.8 mm.; Fruit, 2.5 mm. hairy.

Article records that use this photograph:

• Old Highway 395, Mono County, California: s. of Walker Ck.
• Field Notes: Coll. No. 1025.

        images/TAS010250Fl.jpg

Photographed 28 February 2015.

Determination tentative.

Coll. No. 991, 20 June 1991, characters observed while keying: Perennial, woody, low growing; Stem, decumbent, white tomentose; Leaves, 10 mm. × 1 mm. wide, narrowly oblanceolate, tip acuminate, glandular hairy; Inflorescence, none (collected wrong time of year).

Location records that use this photograph:

• Railroad Sand Flat, Mono County, California

Article records that use this photograph:

• Inyo Forest Road 01S91 “Old Stationhouse Road,” Mono County, California: at wash.
• Field Notes: Coll. No. 991.

        images/IMGQ0237sm.jpg

Scanned 22 Jan 2012.

Coll. No. 769, 22 Jan 2012, characters observed while keying: Perennial herb to 10 cm; Stem branched in proximal 1/2; Leaves entire, cauline reduced; Inforesence 1-few-flowered; Phyllaries in 2 series, 5 mm x 1 mm wide, hairy, not enfolding marginal achenes, margins white (scarious), tips green to brown (not black); Flowers rays absent, disk flowers yellow; Achenes with a pappus of 12± bristles.

Article records that use this photograph:

• Inyo Forest Road 1S104, Mono County, California: on the moraine.
• Field Notes: 20 Jun 2011.

        images/TAS007690Oview.jpg

Scanned 22 Jan 2012.

Coll. No. 769, 22 Jan 2012, characters observed while keying: Perennial herb to 10 cm; Stem branched in proximal 1/2; Leaves entire, cauline reduced; Inforesence 1-few-flowered; Phyllaries in 2 series, 5 mm x 1 mm wide, hairy, not enfolding marginal achenes, margins white (scarious), tips green to brown (not black); Flowers rays absent, disk flowers yellow; Achenes with a pappus of 12± bristles.

Article records that use this photograph:

• Field Notes: 20 Jun 2011.

        images/TAS007690Det.jpg

Scanned 19 March 2011. Background grid is 10 x 10 to the inch.

Article records that use this photograph:

• Field Notes: 2-Aug-07.

        images/TAS005180oview.jpg

Scanned 24 November 2018.

Coll. No. 1901, 31 May 2018, characters observed: Perennial herb, from woody caudex, 10 cm.; Leaves, basal, petiole, 18-22 mm., 5 mm. × 6 mm. wide, ternately divided, glandular, straight multicellular hairy; Inflorescence, 1 head per stem; Peduncles, 40 mm., glandular, short straight spreading hairs; Involucre, 5 mm. × 10 mm. wide; Phyllaries, 2+ series, 6 mm. × 1.3 mm. wide, outer phyllaries glandular hairy, green mid-rib and distally, chartaceous then scarious toward margin, tip, acute, purplish; Receptacle, epaleate; Flowers, of 2 kinds; Ray flowers, #25, tube 1.8 mm. + blade 5.3 mm. × 1 mm. wide, white, fertile; Disk flowers, many, tube 3.5 mm. + lobes 0.3 mm., expanding gradually, yellow, open; Pappus, well-developed, bristles, 3.5-3.8 mm., ±equal, capillary; Cypsela, 2.2 mm. × 0.6 mm. wide, angled, brown, hairy.

Article records that use this photograph:

• Field Notes: Coll. No. 1901, 31 May 2018.

        images/TAS019010Oview.jpg

Photographed 24 November 2018.

Coll. No. 1901, 31 May 2018, characters observed: Perennial herb, from woody caudex, 10 cm.; Leaves, basal, petiole, 18-22 mm., 5 mm. × 6 mm. wide, ternately divided, glandular, straight multicellular hairy; Inflorescence, 1 head per stem; Peduncles, 40 mm., glandular, short straight spreading hairs; Involucre, 5 mm. × 10 mm. wide; Phyllaries, 2+ series, 6 mm. × 1.3 mm. wide, outer phyllaries glandular hairy, green mid-rib and distally, chartaceous then scarious toward margin, tip, acute, purplish; Receptacle, epaleate; Flowers, of 2 kinds; Ray flowers, #25, tube 1.8 mm. + blade 5.3 mm. × 1 mm. wide, white, fertile; Disk flowers, many, tube 3.5 mm. + lobes 0.3 mm., expanding gradually, yellow, open; Pappus, well-developed, bristles, 3.5-3.8 mm., ±equal, capillary; Cypsela, 2.2 mm. × 0.6 mm. wide, angled, brown, hairy.

Location records that use this photograph:

• Kooskoosky River, Nez Perce County, Idaho

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Erigeron compositus Pursh 1814.
• Field Notes: Coll. No. 1901, 31 May 2018.

        images/IMGQ4791sm.jpg

Photographed 26 June 2019.

Coll. No. 2092, 26 June 2019, characters observed: Perennial herb 20 cm.; Stem ascending, short spreading white hairs; Leaves, cauline, alternate, sessile, not clasping, blade 23 mm. × 4.5 mm. wide, 5× long/wide, reduced distally, oblanceolate, entire, eglandular, white curved hairs but not appressed (FNANM: strigoso-hirsute), margins, entire; Inflorescence, heads enclosed by involucre, heads #3+ per stem, not overtopped by leaves; Peduncles, 24-50 mm.; Involucre, 10-11 mm. wide × 5.5 mm. high, ellipsoid; Phyllaries, ±equal, 3± series, 4 mm. × 0.6 mm. wide, green, minutely glandular, margins flat, tips acute; Receptacle, epaleate; Flowers, 2 kinds, Ray flowers, many, tube 2 mm. + blade 5-6 mm. × 0.5 mm. wide, lavender, fertile, pappus, very short scales with a few barbellate bristles; Disk flowers, many, tube 2 mm. + lobes 0.4 mm., tube white, lobes yellow, pappus, alternating very short scales and barbellate bristles, 1.5 mm.; Fruit, 0.8 mm., slightly compressed front to back, light brown, sparsely hairy.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Erigeron divaricatus, Nuttall, 1840.
• Field Notes: Coll. No. 2092, 26 Jun 2019.

        images/TAS020920Oview.jpg

Microphotographed 22 October 2019.

Coll. No. 2092, 26 June 2019, characters observed: Perennial herb 20 cm.; Stem ascending, short spreading white hairs; Leaves, cauline, alternate, sessile, not clasping, blade 23 mm. × 4.5 mm. wide, 5× long/wide, reduced distally, oblanceolate, entire, eglandular, white curved hairs but not appressed (FNANM: strigoso-hirsute), margins, entire; Inflorescence, heads enclosed by involucre, heads #3+ per stem, not overtopped by leaves; Peduncles, 24-50 mm.; Involucre, 10-11 mm. wide × 5.5 mm. high, ellipsoid; Phyllaries, ±equal, 3± series, 4 mm. × 0.6 mm. wide, green, minutely glandular, margins flat, tips acute; Receptacle, epaleate; Flowers, 2 kinds, Ray flowers, many, tube 2 mm. + blade 5-6 mm. × 0.5 mm. wide, lavender, fertile, pappus, very short scales with a few barbellate bristles; Disk flowers, many, tube 2 mm. + lobes 0.4 mm., tube white, lobes yellow, pappus, alternating very short scales and barbellate bristles, 1.5 mm.; Fruit, 0.8 mm., slightly compressed front to back, light brown, sparsely hairy.

Article records that use this photograph:

• Field Notes: Coll. No. 2092, 26 Jun 2019.

        images/TAS020920pappi.jpg

Scanned 3 January 2017.

Coll. No. 1489. 13 July 2016, characters observed: Annual or short-lived perennial, to 15 cm., tap-rooted, ±spreading hairy throughout, becoming minutely glandular above, hairs multicellular with clear crosswalls; Leaves, basal, absent or withered; cauline, alternate, petiole ±10 mm. + blade ±12 mm. × 2.4 mm. wide, uniformly hairy, somewhat reduced above; Inflorescence, heads borne singly on leafy stems, peduncles spreading or decurved, but cannot be described as “heads nodding;” Involucre, 3 mm. × limb 12 mm.; Receptacle, epaleate; Flowers, 2 kinds; Rays, corolla, 3.5 mm., white fading blue; Disk flowers, corolla, 1.7 mm., yellow; Pappus, short scales and longer capillary bristles, similar on ray and disk flowers; Cypsela, 0.8 mm.

Article records that use this photograph:

• Field Notes: Coll. No. 1489, 12 Jul 2016.

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Photographed 15 December 2017.

Article records that use this photograph:

• Field Notes: Coll. No. 1668, 16 Jun 2017.

        images/IMGQ4492sm.jpg

Scanned on 9 Feb 2014.

Coll. No. 968, 22 May 2013, characters observed: Perennial herb to 12 cm.; Stem, glandless; Leaves, opposite below, reduced and alternate above, entire, eglandular; Inflorescence, of two kinds of flowers; Heads, solitary; Receptacle epaleate; Phyllaries, in 2+ series, 5.5-6.5 mm., outer slightly smaller, herbaceous throughout, eglandular; Rays, 8 mm., blue/purple, fertile; Disk, flowers, 4 mm., yellow; Pappus, of well-developed bristles, #>20, 3.5 mm., few short bristles.

Article records that use this photograph:

• Coyote Springs Road, Mono County, California: near pass.
• Field Notes: Coll. No. 968.

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Scanned 14 July 2018.

Article records that use this photograph:

• Field Notes: Coll. No. 1829, 16 May 2018.

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Scanned 14 July 2018.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Erigeron flagellaris, Schweich 2018.
• Field Notes: Coll. No. 1829, 16 May 2018.

        images/TAS018290Det.jpg

Scanned 15 September 2015.

Coll. No. 1116, 28 May 2015, characters observed: Perennial, to 5-6 cm., with scapose inflorescence to 9 cm., spreading by leafy stoloniferous branches; Leaves, basal and cauline, entire, basal, linear-oblanceolate, 35 mm. × 2.5 mm., cauline, linear, 13 mm. × 1.5 mm.; Inflorescence, single heads on scape to 8 cm.; Receptacle epaleate; Phyllaries, 2+series, ±equal, 4 mm., hairy abaxially, ascending multicellular hairs with clear crosswalls, glandular between hairs; Flowers of 2 kinds; Pappus of bristles, 2 mm., + short scales, that of ray and disc flowers alike; Rays, #±80, corolla white, fading lilac, 8 mm. × 0.5 mm.; Disc flowers, corolla yellow, lobes triangular; Achene, short hairy.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Erigeron flagellaris, Schweich 2018.
• Plainview Road, Jefferson County, Colorado.: near coll loc.
• Field Notes: Coll. No. 1116, 28 May 2015.

        images/TAS011160Oview.jpg

Photographed 26 January 2019.

Coll. No. 2005, 25 July 2018, characters observed: Perennial herb, 50 cm., caudex, taprooted; Stem, proximal stem glabrous to distal stem pilose; Leaves, alternate, largest, petiole 60 mm. to sessile distally, blade 120 mm. × 30 mm. wide, reduced distally, oblanceolate, to ovate distally, entire, glabrous to sparsely pilose distally, especially on veins, margins, ciliate; Inflorescence, #1-3 per stem, showy, flat-topped, >leaves; Peduncles, 40-70 mm.; Involucre, 11 mm. × 20 mm. wide, hemispheric; Phyllaries, 3± series, 8 mm. × 1 mm. wide, green with purple tips, glandular, margins, flat; Flowers, 2 kinds; Ray flowers, #30-40, tube 3 mm. + blade 11 mm. × 2.5 mm. wide, coiling, blue, fertile; Disk flowers, many, tube 3.5 mm. + lobes, 0.5 mm., expanding slightly, yellow, bisexual; Pappus, single series, many, well-developed, capillary bristles, 2.4-3.6 mm.; Anther, 1.5 mm., base rounded; Cypsela, 1.8 mm. × 0.3 mm. wide, compressed front to back, brown, hirsute, no beak.

Article records that use this photograph:

• Forest Road 131, Pike -San Isabel National Forest, Lake County, Colorado: at coll. loc.
• Field Notes: Coll. No. 2005, 25 Jul 2018.

        images/IMGQ4859sm.jpg

Scanned 16 Nov 2011.

Coll. No. 709, 16 Nov 2011, Characters observed while keying: Perennial herb to 2 dm; Leaves basal and cauline, basal narrowly elliptic, petiole 2 cm, blade 5 cm, 7mm wide, cauline alternate linear; Phyllaries in 3 series, outer 1/2 x inner 2 series, scarious only on edges, purple tips; Flowers white, rays absent inconspicuous, pistillate and staminate flowers in same head, outer flowers without corollas; Achenes with a pappus of bristles.

Article records that use this photograph:

• Inyo National Forest Road 01S04A, Mono County, California: 10300.
• Field Notes: Col. #709.

        images/TAS007090Oview.jpg

Microphotograph 23 February 2019.

Is this "phyllaries subequal appearing to be in a single series" or "phyllaries imbricate clearly in 2 or more series?"

Article records that use this photograph:

• Field Notes: Coll. No. 1988, 23 Jul 2018.

        images/TAS019880Hdsm.jpg

Scanned 19 February 2020.

Coll. No. 2240, 16 September 2019, characters observed: Perennial herb, to 40 cm.; Stem, hispid (setose or setulose might better describe the pubescence, but this term rarely used by Colorado authors); Leaves, cauline, alternate, blade 27 mm. × 3 mm. wide, reduced distally, oblanceolate, entire, hispid, eglandular, tip, mucronate(-ish); Heads, showy, not overtopped by leaves; Peduncles, 80-100- mm.; Involucre, 5 mm. × 10 mm. wide; Phyllaries, 3± graduated series, 4.5 mm. × 1.2 mm. wide, lower < rest of involucre, chartaceous at base, green center, margin scarious, hispid, glandular, tips purplish; Receptacle, epaleate; Flowers, of 2 kinds; Ray flowers, #100±, tube 2.5 mm. + blade 5 mm. × 0.3 mm. wide, lavender, sterile (?); Disk flowers, many, tube 1.7 mm. + lobes 0.3 mm., expanding gradually, yellow; Pappus, outer crown of dissected scales 0.3-0.4 mm., inner capillary bristles 2.5 mm.; Fruit (cypsela), 1 mm., 4-angled, brown hairy.

Article records that use this photograph:

• Field Notes: Coll. No. 2240, 16 Sep 2019.

        images/IMGQ5132sm.jpg

Scanned 19 February 2020.

Coll. No. 2240, 16 September 2019, characters observed: Perennial herb, to 40 cm.; Stem, hispid (setose or setulose might better describe the pubescence, but this term rarely used by Colorado authors); Leaves, cauline, alternate, blade 27 mm. × 3 mm. wide, reduced distally, oblanceolate, entire, hispid, eglandular, tip, mucronate(-ish); Heads, showy, not overtopped by leaves; Peduncles, 80-100- mm.; Involucre, 5 mm. × 10 mm. wide; Phyllaries, 3± graduated series, 4.5 mm. × 1.2 mm. wide, lower < rest of involucre, chartaceous at base, green center, margin scarious, hispid, glandular, tips purplish; Receptacle, epaleate; Flowers, of 2 kinds; Ray flowers, #100±, tube 2.5 mm. + blade 5 mm. × 0.3 mm. wide, lavender, sterile (?); Disk flowers, many, tube 1.7 mm. + lobes 0.3 mm., expanding gradually, yellow; Pappus, outer crown of dissected scales 0.3-0.4 mm., inner capillary bristles 2.5 mm.; Fruit (cypsela), 1 mm., 4-angled, brown hairy.

Article records that use this photograph:

• Field Notes: Coll. No. 2240, 16 Sep 2019.

        images/TAS022400Hd.jpg

Photographed 16 January 2019.

Coll. No. 1988, 23 July 2018, characters observed: Perennial herb, 35-40 cm., rhizomatous; Stem, spreading hairy, thinning on older stem, without decurrent lines from leaf bases; Leaves, basal withered, cauline, alternate, petiole, proximal 28 mm., to absent mid- to distal-cauline, blade, 40 mm. × 7 mm. wide, 5.7× long as wide, reduced distally, lanceolate, entire, tips white spinulose only in the most distal leaves; Inflorescence, heads #4-8 per stem, showy, (nearly) flat-topped, >leaves; Peduncles, 25-50 mm.; Involucre, 7 mm. × 14 mm. wide, hemispheric; Phyllaries, 3+ series, ±equal, 7 mm. × 0.7 mm. wide, green, with a purplish tip, margins, flat, scarious, tips, sinuous, acute; Flowers, of 2 kinds; Ray flowers, ±#100 (more than usually described), tube 3 mm. + blade 11 mm. × 1.4 mm. wide, blue, fertile (assumed, at least small stigmas seen); Disk flowers, many, tube 4 mm. + lobes 0.5 mm., yellow; Pappus, 2 series, on both ray and disk flowers, 0.5 mm. and 3.0 mm., bristles, barbellate; Cypsela, 2 mm. × 0.8 mm. wide, compressed front to back, brown.

Article records that use this photograph:

• Forest Road 134 “Trail Road,” San Isabel National Forest, Lake County, Colorado: near bottom.
• Field Notes: Coll. No. 1988, 23 Jul 2018.

        images/IMGQ4833sm.jpg

Photographed 11 May 2016.

Article records that use this photograph:

• Social Trail, North Table Mountain, Jefferson County, Colorado: along trail.
• Field Notes: Coll. No. 1337.

        images/IMGQ2563sm.jpg

Scanned 9 October 2015.

Coll. No. 1133, 9 Jun 2015, characters observed: Perennial herb, 20 25 cm., non-rhizomatous, stems non-stoloniferous, eglandular hairy throughout, with hairs 0.2-0.4 mm. spreading in all directions; Leaves, basal and cauline, basal, petiole 23 mm. + blade oblanceolate 20 mm. × 4 mm. wide, margin entire, tip acute, some withered at flowering time, cauline, ±sessile, reduced above, but up to 32 mm. × 1.8 mm. wide; Phyllaries, in 2 ±equal series, but not distinctly imbricate, 3 mm., lanceolate, green center, light margins; Receptacle epaleate; Flowers, 2 kinds; Ray flowers, cypsela 0.5 mm. + tube 2 mm. + ligule 4 mm. = 6.5 mm. × 0.8 mm. wide, fertile, tip rounded, white fading purple; Disk flowers, yellow, just beginning to open but lobes appear to be triangular; Pappus of short and long bristles.

Article records that use this photograph:

• Cottonwood Canyon Trail, Jefferson County, Colorado: on Mesa.
• Field Notes: Coll. No. 1133, 9 Jun 2015.

        images/TAS011330Oview.jpg

Photographed 11 May 2016.

Article records that use this photograph:

• Social Trail, North Table Mountain, Jefferson County, Colorado: along trail.
• Field Notes: Coll. No. 1337.

        images/IMGQ2564sm.jpg

Photographed 9 June 2015.

Article records that use this photograph:

• Cottonwood Canyon Trail, Jefferson County, Colorado: on Mesa.
• Field Notes: Coll. No. 1133, 9 Jun 2015.

        images/IMGQ0784sm.jpg

Scanned 7 November 2016.

Coll. No. 1337, 11 May 2016, characters observed: Perennial, caudex simple (not stout), Stem, some with prior year's branches assumed to have been stoloniferous; Leaves, petioles, to 26 mm., oblanceolate, 8-12 mm. × 2-5.5 mm. wide, margin entire, short hairy and glandular (especially visible at high magnification), stem leaves not well-developed; Peduncle, spreading to descending multicellular hairs with clear crosswalls, slightly pustular (maybe) or glandular at high magnification; Phyllaries, in 2+ series, 4.5 mm. × 0.7 mm wide, spreading hairy, inner, margin, chartaceous; Receptacle, epaleate; Flowers, of two kinds; Rays, numerous, 7 mm., ligule, 4 mm. × 0.3-0.6 mm. wide, white-pink fading purple; Disk flowers, yellow; Pappus, ray and disk alike, inner, few capillary bristles, 4 mm., outer, short crown of scales, double pappus not particularly disgnostic in Erigeron.

Article records that use this photograph:

• Social Trail, North Table Mountain, Jefferson County, Colorado: along trail.
• Field Notes: Coll. No. 1337.

        images/TAS013370Oview.jpg

Scanned 7 December 2016.

Coll. No. 1421, 10 Jun 2016, characters observed: Perennial, to 12 cm., sparse multicellular hairs with clear crosswalls to 0.8 mm., plus very small (<0.1 mm.) peg-like glands, throughout; Leaves, basal, petiole 45 mm. + blade 65 mm. × 5 mm. wide, narrowly oblanceolate, cauline, reduced in size, #4-5, sessile, 15 mm. × 2.1 mm. wide, oblanceolate; Inflorescence, scapose, 21 cm.; Heads, mostly borne singly; Involucre, 5 mm. × 11 mm. wide; Phyllaries, subequal, in 2 rows, 5 mm. × 0.7 mm. wide, margins not ciliate, tip acuminate; Flowers of 2 kinds, Ray flowers, fertile, corolla, 11 mm. × 1.6 mm. wide, ±white, fading blue; Disk flowers, corolla, 4.0 mm., yellow, lobes triangular, style branch appendages triangular; Pappus, short (0.3 mm.) and long (2.2 mm.) capillary bristles; Cypsela, 1.5-1.6 mm.

Article records that use this photograph:

• Field Notes: Coll. No. 1421, 10 Jun 2016.

        images/TAS014210Oview.jpg

Scanned 3 Nov 2011.

Coll. No. 681, 3 Nov 2011: Characters observed while keying: Perennial subshrub, not thistle-like; Leaves entire to 3-(5-)lobed (not compound), margins flat; Headsradiate, > 15 mm wide including ligules (obs: 17-18 mm wide); Phyllaries 5-10 or < 15 (1 obs = 8), keeled; Receptacle naked; Flowers not all ligulate, color yellow; Ray flowers present ±8 (1 obs = 7); Achenes with a small crown-like pappus of scales.

Article records that use this photograph:

• Field Notes: 23 Jul 2010.

        images/TAS006810Oview.jpg

Location records that use this photograph:

• Mono Craters, Mono County, California

Article records that use this photograph:

• A Checklist Flora of the Mono Lake Basin, Mono County, California and Mineral County, Nevada.: California Geological Survey.

        images/MLF_V1_Slide_36.jpg

Scanned 17 October 2013.

Coll. No. 116, 29 April 1997, characters observed while chasing my tail around the Gnaphalieae: Annual, to 2.5 cm., densely wooly; Leaves, alternate, 5.5 mm. × 3 mm. wide, 3-lobed, lobes ±folded abaxially, not spiny; Inflorescence, ray flowers 0, flowers of 2 kinds 1 kind, embedded in wooly hairs; Phyllaries in 1 series, 3 mm. × 0.7 mm wide, membraneous, few, non-overlapping, ±enclosing some outer flowers; Receptacle epaleate; Flowers ≥12 per head; Pappus a low crown; Corolla yellow; Fruit not compressed.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 116.

        images/TAS001160Oview.jpg

Scanned 17 October 2013.

Coll. No. 116, 29 April 1997, characters observed while chasing my tail around the Gnaphalieae: Annual, to 2.5 cm., densely wooly; Leaves, alternate, 5.5 mm. × 3 mm. wide, 3-lobed, lobes ±folded abaxially, not spiny; Inflorescence, ray flowers 0, flowers of 2 kinds 1 kind, embedded in wooly hairs; Phyllaries in 1 series, 3 mm. × 0.7 mm wide, membraneous, few, non-overlapping, ±enclosing some outer flowers; Receptacle epaleate; Flowers ≥12 per head; Pappus a low crown; Corolla yellow; Fruit not compressed.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 116.

        images/TAS001160Det.jpg

Scanned 28 October 2013.

Article records that use this photograph:

• Wild Horse Canyon Road - Mojave National Preserve: near Wild Horse Mesa.
• Field Notes: 29 Apr 1997.

        images/TAS000930Oview.jpg

Photograph taken 20 April 2005.

Article records that use this photograph:

• Kingston Road - Eastern Mojave Desert: at Winters Pass Hills.
• Field Notes: 20 Apr 05 Looking for Langloisia.

        images/IMGP1033sm.jpg

        images/1621-25.jpg

Grid is 10x10 to the inch.

Article records that use this photograph:

• Field Notes: 20 Apr 2004.

        images/TAS003402oview.jpg

Grid is 10x10 to the inch.

Article records that use this photograph:

• Field Notes: 20 Apr 2004.

        images/TAS003402infl.jpg

Scanned 28 Jan 2014.

Coll. No. 278, 24 Apr 2001, characters observed: Annual, to 3 cm., cobwebby, not gland-dotted; Leaves, basal and cauline, alternate, to 9 mm., obovate, entire; Peduncle, 8-15 mm.; Inflorescence, composed of two kinds of flowers, some with strap-shaped corollas; Phyllaries, in 1-series, (ஃequal); Receptacle, epaleate, conical, slightly pitted; Ray flowers, 5 mm., yellow, corolla not papery, deciduous; Anther tip awl-like; Pappus of well-developed scales, 0.5 mm., on both ray and disk flowers; Fruit, 2 mm., black, some appressed hairy.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 278.

        images/TAS002780Infl.jpg

Scanned 31 October 2013.

The flower head at right has been partially dissected, and the conical receptacle can be seen.

Coll. No. 118, 29 April 1997, characters observed while keying: Annual, tap-rooted, wooly, to 4 cm.; Leaves, cauline, alternate, 7 mm., sessile or very short-petioled, without embedded oil glands; Inflorescence, some flowers with strap-shaped corollas, head radiate, composed of 2 kinds of flowers; Peduncle, 6-8 mm.; Phyllaries, in 1 series, flat, 5 mm., without embedded oil glands; Receptacle epaleate, conical (TJM2 says “hemispheric”); Pappus, 6-8 short (0.5 mm.) scales, ±equal; Corollas, yellow, ray tube 1 mm. + blade 5 mm.; Anther tips awl-like (almost look hair-like); Fruit, 2 mm.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 118.

        images/TAS001180Oview.jpg

Scanned 31 October 2013.

From left to right: 2 phyllaries, 1 ray flower, 8 disc flowers.

Coll. No. 118, 29 April 1997, characters observed while keying: Annual, tap-rooted, wooly, to 4 cm.; Leaves, cauline, alternate, 7 mm., sessile or very short-petioled, without embedded oil glands; Inflorescence, some flowers with strap-shaped corollas, head radiate, composed of 2 kinds of flowers; Peduncle, 6-8 mm.; Phyllaries, in 1 series, flat, 5 mm., without embedded oil glands; Receptacle epaleate, conical (TJM2 says “hemispheric”); Pappus, 6-8 short (0.5 mm.) scales, ±equal; Corollas, yellow, ray tube 1 mm. + blade 5 mm.; Anther tips awl-like (almost look hair-like); Fruit, 2 mm.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 118.

        images/TAS001180FlPts.jpg

Photographed 14 December 2017.

Article records that use this photograph:

• Field Notes: Coll. No. 1665, 16 Jun 2017.

        images/IMGQ4490sm.jpg

Scanned 17 December 2016.

The flower head at left has been partially dissected to show the long stiff setae arising from the receptacle. Inset show pappus of scales on the disk flowers.

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: near coll loc.
• Field Notes: Coll. No. 1454, 27 Jun 2016.

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Photographed 14 June 2019.

Location records that use this photograph:

• Dakota Ridge, Jefferson County, Colorado

Article records that use this photograph:

• Field Notes: 20190614020.

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Scanned 20 Nov 2011.

Article records that use this photograph:

• Field Notes: Coll. No. 719.1.

        images/TAS007191Oview.jpg

Photographed 10 August 2012.

Article records that use this photograph:

• Veterans Court, City of Alameda, Alameda County, California: at sea wall.
• Field Notes: Coll. No. 882.

        images/IMG30565sm.jpg

Photographed 10 August 2012.

Article records that use this photograph:

• Veterans Court, City of Alameda, Alameda County, California: at sea wall.
• Field Notes: Coll. No. 882.

        images/IMG30564sm.jpg

Scanned 21 August 2013.

Coll. No. 893, 24 Aug 2013, characters observed while keying: Perennial shrub, to 40 cm; Stem glabrous; Leaves alternate, 5 cm x 9 mm wide, oblanceolate, margins serrulate, margin teeth glandular; Inflorescence, head enclosed by involucre, flat-topped, not overtopped by leaves, heads with gummy exudate; Phyllaries in 4-6 series, unequal, eglandular, tips acute, coiled 360°; Receptacle epaleate; Flowers of 2 kinds, many; Pappus, few well-developed awns; Corolla yellow.

Article records that use this photograph:

• Field Notes: Coll. No. 893.
• U. S. Highway 395: near Conway Summit.

        images/TAS008930Oview.jpg

Photographed 24 August 2012.

Article records that use this photograph:

• Field Notes: Coll. No. 893.
• U. S. Highway 395: near Conway Summit.

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Scanned 20 Jan 2014.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 143.

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Scanned 20 Jan 2014.

Article records that use this photograph:

• Field Notes: Coll. No. 157.

        images/TAS001570Infl.jpg

Scanned 20 Jan 2014.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 157.

        images/TAS001570Oview.jpg

Scanned 17 January 2016.

Coll. No. 1289, 8 Sep 2015, characters observed: Shrub, to 30 cm.; Leaves, cauline, alternate, 27 mm. × 0.8 mm. wide, linear; Inflorescence, many subsessile heads in flat-topped clusters; Involucre, 4 mm. × 1.5 mm. wide, obconic; Phyllaries, 2+ series (very waxy and difficult to dissect cleanly); Receptacle, epaleate; Flowers of 2 kinds; Rays, #6-7, fertile, corolla, 3.5 mm., yellow; Disk flowers, #2-3, corolla, 2.5 mm., yellow; Pappus, scales; Cypsela, 0.8 mm.

Article records that use this photograph:

• Field Notes: Coll. No. 1289, 9 Sep 2015.

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Scanned 19 Jan 2014.

Coll. No. 144, 3 Oct 1997, characters observed: Perennial, tap-rooted, to 9 cm.; Leaves, alternate, linear, 20 mm. × 1 mm. mm. wide, dotted with embedded oil glands, very few short hairs; Peduncle, 0.5-1.5 mm.; Inflorescence, some flowers with strap-shaped corollas, flowers of two kinds in same heads, Involucre, 3.5 mm. × 2.5-3.0 mm. wide, obconic, not gummy; Phyllary, 2-3 unequal series, inner folded around ovary of ray flowers, dotted with embedded oil glands, tips appressed; Receptacle, epaleate; Rays, #5, yellow; Disk, #4; Pappus, a well-developed crown of scales on both ray and disk flowers; Keys easily to Gutierrezia sarothrae. However, inner phyllaries are folded around ovary of ray flowers, a character not mentioned in keys or description.

        images/TAS001440Infl.jpg

Photographed 9 September 2015.

Article records that use this photograph:

• Field Notes: Coll. No. 1289, 9 Sep 2015.

        images/IMGQ1619sm.jpg

Scanned 19 Jan 2014.

Coll. No. 144, 3 Oct 1997, characters observed: Perennial, tap-rooted, to 9 cm.; Leaves, alternate, linear, 20 mm. × 1 mm. mm. wide, dotted with embedded oil glands, very few short hairs; Peduncle, 0.5-1.5 mm.; Inflorescence, some flowers with strap-shaped corollas, flowers of two kinds in same heads, Involucre, 3.5 mm. × 2.5-3.0 mm. wide, obconic, not gummy; Phyllary, 2-3 unequal series, inner folded around ovary of ray flowers, dotted with embedded oil glands, tips appressed; Receptacle, epaleate; Rays, #5, yellow; Disk, #4; Pappus, a well-developed crown of scales on both ray and disk flowers; Keys easily to Gutierrezia sarothrae. However, inner phyllaries are folded around ovary of ray flowers, a character not mentioned in keys or description.

Article records that use this photograph:

• Lobo Point Road: at the camp site.
• Field Notes: Coll. No. 144.

        images/TAS001440Oview.jpg

Scanned 17 January 2016.

Coll. No. 1289, 8 Sep 2015, characters observed: Shrub, to 30 cm.; Leaves, cauline, alternate, 27 mm. × 0.8 mm. wide, linear; Inflorescence, many subsessile heads in flat-topped clusters; Involucre, 4 mm. × 1.5 mm. wide, obconic; Phyllaries, 2+ series (very waxy and difficult to dissect cleanly); Receptacle, epaleate; Flowers of 2 kinds; Rays, #6-7, fertile, corolla, 3.5 mm., yellow; Disk flowers, #2-3, corolla, 2.5 mm., yellow; Pappus, scales; Cypsela, 0.8 mm.

Article records that use this photograph:

• Field Notes: Coll. No. 1289, 9 Sep 2015.

        images/TAS012890Heads.jpg

Scanned 2 February 2015.

Helenium bigelovii A. Gray. Bigelow's Sneeze Weed.

Walker Creek (Lower), Mono County, California. Pumice Valley, along the bank of Walker Creek, just above the crossing of old US Highway 395, growing in the creek bank and hanging over the creek. 37.9038°N, 119.1028°W. WGS 1984. Elev. 2090 m.

Coll. No. 1027, 24 Jul 2013, characters observed while keying: Perennial, Stems, to 50 cm. (hanging over a creek from the bank); Leaves, alternate, cauline, lanceolate, slightly arcuate, entire, largest 13 cm. × 2.6 cm. wide, decurrent on stem 4.5 cm. forming wings; Heads, single on peduncle 15 cm., composed of two kinds of flowers, some with strap-shaped corollas; Phyllaries, 2 series, overlapping slightly, ±equal, reflexed; Receptacle, epaleate, smooth, spheric; Ray, yellow, corolla withering (not papery); Pappus of well-developed scales, #±6, ± equal.

Article records that use this photograph:

• Old Highway 395, Mono County, California: at Walker Ck.
• Field Notes: Coll. No. 1027.

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Photographed 19 January 2019.

Coll. No. 1990, 23 Jul 2018, characters observed: Perennial herb, to 80 cm., rhizomatous; Stem, proximal glabrous to distal tangled multicellular hairy; Leaves, all cauline (some very proximally cauline), opposite, petiole, 35 mm., blade 110 mm. × 27 mm. wide, mid-cauline the largest, elliptic, entire, sparsely short hairy throughout, eglandular; Inflorescence, heads, 1 terminal, sometimes a smaller pair in upper axils, showy, >leaves, ±nodding; Peduncles (axillary), 70 mm.; Involucre, 15 mm. × 33 mm. wide, spheric; Phyllaries, 3± series, 28 mm. × 6 mm. wide, green flat, margin, ciliate; Receptacle, paleate; Palea, 11 mm. × 2.5 mm. wide, scarious, soft; Flowers, 2 kinds; Ray flowers, #20-24, tube 5 mm. + blade 23 mm. × 6 mm. wide, yellow, sterile; Disk flowers, many, tube 1.5 mm. + throat 3 mm. + lobes 0.5 mm., throat expanding abruptly, yellow; Pappus, disk flowers only, two types, 1.0 mm. scales in an outer ring, 2.5 mm. #2 awn-like scales; Cypsela, 7.4 mm. × 3 mm. wide, obovate, compressed side-to-side, black, hairy.

Article records that use this photograph:

• Forest Road 134 “Trail Road,” San Isabel National Forest, Lake County, Colorado: near bottom.
• Field Notes: Coll. No. 1990, 23 Jul 2018.

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Scanned 31 December 2017.

H. pumilus on the left, and H. pauciflorus ssp. subrhomboideus on the right.

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: at old ranch rd.
• Field Notes: Coll. No. 1715, 28 Jul 2017.

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Photographed 26 July 2015.

Coll. No. 1260, 26 Jul 2015, characters observed: Perennial from rhizomes (not a tap-rooted annual), to 1 mm.; Leaves, cauline, opposite, 135 mm. × 32 mm. wide, rhomboid, margin, straight, short-toothed, green, not glaucus, adaxial scabrous-hispid, abaxial scabrous; Inflorescence, solitary heads on long peduncles; Peduncle, 25 cm.; Phyllaries in 3+ imbricate series, all similar, 8-9 mm. × 4 mm. wide, ovo-lanceolate, margin, ciliate, tips, erect; Receptacle, hemispheric, paleate; Paleae, 8 mm., ciliate distally; Rays, sterile, pappus, 2 scales 2.5 mm., corolla, 24 mm. × 6 mm. wide, yellow; Disk flowers, fertile, pappus, crown of scales with 2 elongated to 4 mm., corolla, 5 mm., yellow to dark red distally; cypsela, 3.3 mm., compressed quadrangular.

Article records that use this photograph:

• Plainview Road, Jefferson County, Colorado.: near coll loc west.
• Field Notes: Coll. No. 1260, 26 Jul 2015.

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Scanned 26 December 2015.

Coll. No. 1260, 26 Jul 2015, characters observed: Perennial from rhizomes (not a tap-rooted annual), to 1 mm.; Leaves, cauline, opposite, 135 mm. × 32 mm. wide, rhomboid, margin, straight, short-toothed, green, not glaucus, adaxial scabrous-hispid, abaxial scabrous; Inflorescence, solitary heads on long peduncles; Peduncle, 25 cm.; Phyllaries in 3+ imbricate series, all similar, 8-9 mm. × 4 mm. wide, ovo-lanceolate, margin, ciliate, tips, erect; Receptacle, hemispheric, paleate; Paleae, 8 mm., ciliate distally; Rays, sterile, pappus, 2 scales 2.5 mm., corolla, 24 mm. × 6 mm. wide, yellow; Disk flowers, fertile, pappus, crown of scales with 2 elongated to 4 mm., corolla, 5 mm., yellow to dark red distally; Crysela, 3.3 mm., compressed quadrangular.

Article records that use this photograph:

• Field Notes: Coll. No. 1260, 26 Jul 2015.

        images/TAS01260Head.jpg

Photographed 27 December 2015.

Coll. No. 1260, 26 Jul 2015, characters observed: Perennial from rhizomes (not a tap-rooted annual), to 1 mm.; Leaves, cauline, opposite, 135 mm. × 32 mm. wide, rhomboid, margin, straight, short-toothed, green, not glaucus, adaxial scabrous-hispid, abaxial scabrous; Inflorescence, solitary heads on long peduncles; Peduncle, 25 cm.; Phyllaries in 3+ imbricate series, all similar, 8-9 mm. × 4 mm. wide, ovo-lanceolate, margin, ciliate, tips, erect; Receptacle, hemispheric, paleate; Paleae, 8 mm., ciliate distally; Rays, sterile, pappus, 2 scales 2.5 mm., corolla, 24 mm. × 6 mm. wide, yellow; Disk flowers, fertile, pappus, crown of scales with 2 elongated to 4 mm., corolla, 5 mm., yellow to dark red distally; cypsela, 3.3 mm., compressed quadrangular.

Article records that use this photograph:

• Field Notes: Coll. No. 1260, 26 Jul 2015.

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Photographed 3 Sep 2016.

Location records that use this photograph:

• Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado

Article records that use this photograph:

• Field Notes: Saturday, 3 September 2016.

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Scanned 10 December 2016.

Perennial herb, to 40 cm.; Leaves, cauline, alternate, simple, petiole 7 mm. + blade 86 mm. × 30 mm. wide, adaxial, pustular hairy, hairs multicellular, crosswalls clear, abaxial, glandular and hairy; Inflorescence, heads borne singly on leafy stems, peduncles to 8 cm., hairy, glandular; Phyllaries in 2+ series, similar, 6-10 mm. × 2.0-3.5 mm. wide, erect, ovate, hairy abaxially, margins ciliate, tip acuminate, not as “stiff” or “tough” as those of Coll. No. 1199; Receptacle, slightly convex, paleate; Disk, 17 mm. wide; Palea, 9 mm., tip, glandular, hairy distally; Flowers, 2 kinds; Ray flowers, sterile, #10-12, corolla, 17-25 mm. × 6-9 mm. wide, yellow; Disk flowers, corolla, 5-6 mm., yellow, lobes, #5, 1 mm., yellow, anther appendages reddish-brown; Pappus of few long (2.5 mm.) aristate scales; Cypsela, not latterally compressed. Described from Coll. No. 1210, 13 Jul 2015, and Coll. No. 1426, 15 June 2016.

Article records that use this photograph:

• Field Notes: Coll. No. 1426, 15 Jun 2016.

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Photographed 13 July 2015.

Article records that use this photograph:

• Field Notes: Coll. No. 1210, 13 Jul 2015.

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Photographed 30 December 2017.

The opposite leaves are a little unusual.

Article records that use this photograph:

• Field Notes: Coll. No. 1704, 14 Jul 2017.

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Scanned 22 October 2013.

Coll. No. 403, 25 May 2004, characters observed while attempting to key: Perennial, woody at base, to 35 cm., generally short appressed hairy throughout; Leaves, cauline, opposite, sessile or very short petioled, 30 mm. × 5 mm. wide, bases fused around stem, narrowly elliptic, margin entire; Inflorescence, single heads, terminal or axillary, ray flowers immature, reduced, or absent; Phyllaries in 2+ overlapping series, ±equal, 5.5 mm. × 1 mm., lanceolate, entirely green, margins flat, none of the first two series subtending ray flowers; Receptacle convex or conic, paleate; Palea flat, or wrapped around ovary only at base, awned or sharp-pointed; Pappus 0; Corolla, yellow or orange; Anthers, 5, bases rounded but flowers quite immature; Ovary ±thick, not ciliate; Style immature, dilated(?).

Flowers are immature. Similarity to Sanvitalia noted when collected, except this is definitely a perennial woody at base, and out of range for Sanvitalia.

Article records that use this photograph:

• Field Notes: Coll. No. 403.
• Nevada Highway 266: at dirt road.

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Scanned 22 October 2013.

Coll. No. 403, 25 May 2004, characters observed while attempting to key: Perennial, woody at base, to 35 cm., generally short appressed hairy throughout; Leaves, cauline, opposite, sessile or very short petioled, 30 mm. × 5 mm. wide, bases fused around stem, narrowly elliptic, margin entire; Inflorescence, single heads, terminal or axillary, ray flowers immature, reduced, or absent; Phyllaries in 2+ overlapping series, ±equal, 5.5 mm. × 1 mm., lanceolate, entirely green, margins flat, none of the first two series subtending ray flowers; Receptacle convex or conic, paleate; Palea flat, or wrapped around ovary only at base, awned or sharp-pointed; Pappus 0; Corolla, yellow or orange; Anthers, 5, bases rounded but flowers quite immature; Ovary ±thick, not ciliate; Style immature, dilated(?).

Flowers are immature. Similarity to Sanvitalia noted when collected, except this is definitely a perennial woody at base, and out of range for Sanvitalia.

Article records that use this photograph:

• Field Notes: Coll. No. 403.
• Nevada Highway 266: at dirt road.

        images/TAS004030Lvs.jpg

Scanned 22 October 2013.

Coll. No. 403, 25 May 2004, characters observed while attempting to key: Perennial, woody at base, to 35 cm., generally short appressed hairy throughout; Leaves, cauline, opposite, sessile or very short petioled, 30 mm. × 5 mm. wide, bases fused around stem, narrowly elliptic, margin entire; Inflorescence, single heads, terminal or axillary, ray flowers immature, reduced, or absent; Phyllaries in 2+ overlapping series, ±equal, 5.5 mm. × 1 mm., lanceolate, entirely green, margins flat, none of the first two series subtending ray flowers; Receptacle convex or conic, paleate; Palea flat, or wrapped around ovary only at base, awned or sharp-pointed; Pappus 0; Corolla, yellow or orange; Anthers, 5, bases rounded but flowers quite immature; Ovary ±thick, not ciliate; Style immature, dilated(?).

Flowers are immature. Similarity to Sanvitalia noted when collected, except this is definitely a perennial woody at base, and out of range for Sanvitalia.

Article records that use this photograph:

• Field Notes: Coll. No. 403.
• Nevada Highway 266: at dirt road.

        images/TAS004030Oview.jpg

Scanned 28 Dec 2014.

Coll. No. 1034, 31 August 2013, characters observed while keying: Herbaceous annual or biennial, to 35 cm., rigid hairs with hooked branches at tip; Sap slightly milky (seen mostly at base of phyllaries); Leaves basal and cauline, alternate, 11 cm x 18 mm wide, oblanceolate, slightly glandular, margins entire, not spine-tipped; Involucre 14 mm; Phyllaries in 4-5 series, the outer series are wide and stand away from the rest, the inner series are narrow, appendaged at tip; Receptacle epaleate; Flowers all rays; Pappus of well developed bristles, ±equal, broader at base, plumose; Corolla yellow, readily withering; Fruit 3 mm x 0.5 mm wide, brown, annular ridges or decoration giving the appearance of a small insect pupa.

Article records that use this photograph:

• Field Notes: Coll. No. 1034.

        images/TAS010340Head.jpg

Scanned 28 Dec 2014.

Coll. No. 1034, 31 August 2013, characters observed while keying: Herbaceous annual or biennial, to 35 cm., rigid hairs with hooked branches at tip; Sap slightly milky (seen mostly at base of phyllaries); Leaves basal and cauline, alternate, 11 cm x 18 mm wide, oblanceolate, slightly glandular, margins entire, not spine-tipped; Involucre 14 mm; Phyllaries in 4-5 series, the outer series are wide and stand away from the rest, the inner series are narrow, appendaged at tip; Receptacle epaleate; Flowers all rays; Pappus of well developed bristles, ±equal, broader at base, plumose; Corolla yellow, readily withering; Fruit 3 mm x 0.5 mm wide, brown, annular ridges or decoration giving the appearance of a small insect pupa.

Article records that use this photograph:

• Field Notes: Coll. No. 1034.

        images/TAS010340Oview.jpg

Scanned 28 January 2020.

Coll. No. 2177, 23 July 2019, characters observed: Perennial herb, to 40 cm.; Stem, hispid, glandular; Leaves, proximal mostly withered, but they appear to have been oblanceolate; distal, 35 mm. × 9 mm. wide, sessile, oblanceolate, glandular, hispid, hairs are curved, but not really appressed, so not strigose, Bracts, #1-4, surpassing heads; Phyllaries, 2+ graduated series; Flowers of 2 kinds; Ray flowers, tube 4 mm. + blade 17 mm. ×1 mm. wide, yellow; Disk flowers, tube 6 mm. + lobes 1.5 mm = 7.5 mm., yellow; Pappus, capillary bristles 2 kinds, short, 1 mm., long, 7 mm. Cypsela, 2 mm., shaggy hairy;

In Harrington (1954): Crysopsis fulcrata Greene [=Heterotheca fulcrata (Greene) Shinners], and not Chrysopsis foliosa Nutt. because the involucres are definitely glandular. In Weber & Wittman (2012): Heterotheca villosa (Pursh) Shinners. H. fulcrata requires foliage very densely appressed pubescent, the plant gray in aspect, glands hardly visible. H. foliosa (Nutt.) Shinners is not recognized. In Ackerfield (2015): Heterotheca foliosa (Nutt.) Shinners [H. fulcrata (Greene) Shinners misapplied].

Article records that use this photograph:

• Field Notes: Coll. No. 2177, 23 Jul 2019.

        images/TAS021770Infl.jpg

Scanned 16 February 2020.

Not as easily distinguished from H. villosa as other collections.

Article records that use this photograph:

• Field Notes: Coll. No. 2226, 10 Sep 2019.

        images/TAS022260Infl.jpg

Scanned 25 December 2015.

Coll. No. 1258, 26 Jul 2015, characters observed: Perennial, to 40 cm.; Stem, spreading hairy, glandular; Leaves, cauline, alternate, 33 mm. × 9 mm. wide, oblong, margin entire, tip acute, appressed hairy; Peduncle, 15 mm.; Bracts, leafy, 10-16 mm. × 2.5 mm., lanceolate, some exceeding heads by 4-7 mm.; Involucre, 9 mm. × 14 mm. wide; Phyllaries, in 4+ graduated series, 4-9 mm. × 1 mm. wide, lanceolate, slightly keeled proximally, mostly green, abaxial surface glandular and hairy, margin hairy; Receptacle, epaleate, short (0.5 mm.) scales; Flowers, 2 kinds; Rays, sterile, corolla, 11 mm., yellow; Disk flowers, corolla, 7 mm., yellow; Pappus, short (0.6 mm.) and long (6 mm.) bristles, ≥disk corolla; cypsela, 1.3 mm., hairy.

Article records that use this photograph:

• Field Notes: Coll. No. 1258, 26 Jul 2015.

        images/TAS012580Oview.jpg

Photographed 17 August 2012.

Couldn't tell what the sign said, as it was obscured by the Pampas grass. But, I'm pretty sure it didn't say, "No botanical collecting."

Article records that use this photograph:

• North Loop Road, Harbor Business Park, City of Alameda, Alameda County, California: Coll. No. 883.
• Field Notes: Coll. No. 883.

        images/IMG30568sm.jpg

Photographed 17 August 2012.

Article records that use this photograph:

• North Loop Road, Harbor Business Park, City of Alameda, Alameda County, California: Coll. No. 883.
• Field Notes: Coll. No. 883.

        images/IMG30570sm.jpg

Photographed 15 January 2019.

Coll. No. 1986, 23 July 2018, characters observed: Perennial herb, 12 cm.; Stem, purplish, short and long multicellular hairs, glandular; Leaves, cauline, alternate, well-distributed along stem, petiole, 10 mm., blade, 25 mm. × 4 mm. wide, reduced distally, oblanceolate, hairy and somewhat glandular, margin, entire, slightly revolute; Inflorescence, heads, 1 per stem, showy, >leaves; Involucre, 7 mm. × 10 mm. wide, bowl-shaped, glandulo-hispid; Phyllaries, 3+ series, 3.3-7 mm. × 0.6-1.2 mm. wide, prominent mid-vein, green center, scarious margins; Receptacle, epaleate; Flowers, 2 kinds; Ray flowers, #6-8, tube 4.5 mm. + blade 8.5 mm. × 2 mm. wide, yellow, fertile; Disk flowers, many, tube 4.5 mm. + lobes 0.5 mm., yellow, open; Pappus, many, 2 series, both ray and disk flowers, bristles, 0.9, 5.0 mm., barbelate; Cypsela, 2.5-3.0 mm. × 0.7 mm. wide, brown, hairy.

Article records that use this photograph:

• Forest Road 134 “Trail Road,” San Isabel National Forest, Lake County, Colorado: near bottom.
• Field Notes: Coll. No. 1986, 23 Jul 2018.

        images/IMGQ4832sm.jpg

Scanned 19 January 2016.

Possibly var. villosa.

Coll. No. 1293, 9 Sep 2015, characters observed: Perennial herb, to 80 cm.; Stem, short and spreading long hairs, glandular; Leaves, cauline, alternate, 30 mm. × 9 mm. wide, mid-cauline oblong, reduced and ovate-lanceolate above, sessile, strigose, eglandular margin entire, not contorted after drying; Involucre, 8-10 mm. × 9-12 mm. wide; Phyllaries in 3+ imbricate graduated series, 4.5-8 mm. × 1.3 mm. wide, tip obtuse, dark spot, abaxially spreading hairy, margin ciliate, eglandular; Receptacle, epaleate; Flowers of 2 kinds; Rays, fertile, corolla, 9 mm., yellow; Disk flowers, corolla, 6 mm., yellow; Pappus, 2 series of capillary bristles, outer 1 mm., and inner 5.5 mm.

Article records that use this photograph:

• Field Notes: Coll. No. 1293, 9 Sep 2015.

        images/TAS012930Oview.jpg

Scanned 13 January 2017.

Possibly var. villosa.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, 1.02 km. southwest of the Mesa Spur trailhead on 58th Avenue, 4.66 km. north northeast of the GNIS location of Golden. 39.7953°N, 105.2039°W. WGS 1984 Elev. 1848 m. Mixed grasses and forbs upslope of North Table Loop.

Coll. No. 1521, 29 July 2016, characters observed: Perennial herb, to 35 cm., eglandular and hispid throughout; Leaves, cauline, alternate, sessile, 35 mm. × 18 mm. wide, ovate, entire, not contorted after drying; Heads, borne singly on leafy peduncles to 50 mm., subtended by a pair of bracts, sometimes equalling but not exceeding the head, with cilia to 1.2 mm. proximally; Phyllaries, 3+graduated series, 3-8 mm. × 1 mm. wide, more toward strigose than hispid, tips, dark brown; Receptacle, epaleate, hemispheric; Flowers, 2 kinds; Rays, corolla, 9 mm., yellow; Disk flowers, corolla, 6.5 mm., yellow; Pappus, short (1 mm.) and long (5-6 mm.) capillary bristles; Cypsela, 3 mm., hairy.

Perhaps an intermediate between Heterotheca villosa and H. foliosa. See discussion in Ackerfield (2015) Flora of Colorado.

Article records that use this photograph:

• North Table Loop, Jefferson County, Colorado: s. of williams parcel.
• Field Notes: Coll. No. 1521, 29 Jul 2016.

        images/TAS015210Hd.jpg

Scanned 14 December 2017.

Article records that use this photograph:

• Field Notes: Coll. No. 1664, 16 Jun 2017.

        images/TAS016640Oview.jpg

Photographed 13 July 2015.

Possibly var. nana.

Article records that use this photograph:

• Field Notes: Coll. No. 1209, 13 Jul 2015.

        images/IMGQ1254sm.jpg

Photographed 10 August 2014.

Possibly var. nana.

Article records that use this photograph:

• Tucker Gulch Trail, Golden, Colorado: near shelter.
• Field Notes: Coll. No. 1055, 10 Aug 2014.

        images/IMG40346sm.jpg

Collected 7 December 2015.

Possibly var. nana.

Coll. No. 1209, 13 Jul 2015, characters observed: Perennial herb, to 40 cm.; Stem, curved multicellular hairs, glands; Leaves, cauline, alternate, 13 mm. × 4 mm. wide, oblong to oblanceolate, margin entire (some contorted after drying), tip small pointed, curved hairs, yellow glandular; Inflorescence, 1-7 heads per stem, single heads on short pedicels, flowers of 2 kinds; Bracts, unremarkable; Phyllaries, in 2+ graduated series, 2-7 mm. × <1 mm. wide, lance-linear, tips erect, hairy, glandular; Receptacle epaleate, hemispheric; Rays, sterile, corolla, 10 mm. × 1.3 mm. wide, yellow; Disk flowers, corolla, 5.0 mm., yellow; Pappus, outer of short scales and inner of long bristles (easier seen in mature fruit, in flower will appear as one series of long and short bristles), longest 5.5-6.0 mm., ≥disk flowers, short plumose; cypsela, 2.6 mm. × 1.2 mm. wide, hairy.

Article records that use this photograph:

• Field Notes: Coll. No. 1209, 13 Jul 2015.

        images/TAS012090Oview.jpg

Scanned 10 August 2014.

Possibly var. nana.

There are visible scales outside the bristles on the mature fruit to right of center.

Perennial herb, to 50 cm.; Leaves, cauline alternate, entire, 1-veined, distal perpendicular to stems, hairs > glands; Heads solitary, with both ray and disk flowers; Phyllaries in 2+ series, unequal, to 7 mm.; Rays, 9 mm.; Pappus double, outer narrow scales ≤ 1 mm. (easier to see on mature fruit), inner bristles, 6.5 mm., white; Fruit, disk 3 mm., hairy.

Location records that use this photograph:

• Tucker Gulch (lower), Jefferson County, Colorado

Article records that use this photograph:

• Tucker Gulch Trail, Golden, Colorado: near shelter.
• Field Notes: Coll. No. 1055, 10 Aug 2014.

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Photographed 13 July 2019.

Article records that use this photograph:

• Field Notes: Coll. No. 2150, 13 Jul 2019.

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Photographed 6 December 2019.

Article records that use this photograph:

• Field Notes: Coll. No. 2150, 13 Jul 2019.

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Photographed 13 July 2019.

Article records that use this photograph:

• Field Notes: Coll. No. 2150, 13 Jul 2019.

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Photographed 13 July 2019.

Article records that use this photograph:

• Field Notes: Coll. No. 2150, 13 Jul 2019.

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Photograph taken 5 July 2010.

Article records that use this photograph:

• Field Notes: 5 Jul 2010.

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Scanned 7 June 2011.

Article records that use this photograph:

• Field Notes: 5 Jul 2010.

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Article records that use this photograph:

• Field Notes: 20070625200.

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Photograph taken 5 July 2010.

Article records that use this photograph:

• Inyo National Forest Road 01S04A, Mono County, California: 10300.
• Field Notes: 5 Jul 2010.

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Photograph taken 5 July 2010.

Article records that use this photograph:

• Field Notes: 5 Jul 2010.

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Location records that use this photograph:

• Mono Craters, Mono County, California

Article records that use this photograph:

• A Checklist Flora of the Mono Lake Basin, Mono County, California and Mineral County, Nevada.: California Geological Survey.

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Scanned 8 January 2017.

Lower slopes on the west side of North Table Mountain, along side of North Table Loop, just a few meters north of the access road to the trailhead, 3.2 km. north northwest of the GNIS location of Golden. 39.7833°N, 105.2298°W. WGS 1984 Elev. 1835 m.

Coll. No. 1504, 13 July 2016, characters observed: Perennial herb, to 60 cm., ±tomentose throughout; Leaves, basal, petiole 35 mm. + blade 75 mm. × 30 mm. wide, very deeply pinnafitid, segments filiform, ultimate divisions 8-18 mm., cauline, #4-5, similar, reduced above, bases conspicuously tomentose; Inflorescence, heads borne singly on peduncles, 22-45 mm., #(5) 7 (15); Involucre, 8 mm. × 15 mm. wide; Receptacle, epaleate, flat; Phyllaries, 2 series, 7 mm. × 2.5 mm. wide; inner > outer, margins chartaceous, tips broad scarious; Flowers, 1 kind; Disk flowers, corolla, yellow; Pappus, scales, 1.2 mm.; Achenes, 5 mm., hairy all over, more so on the angles.

Article records that use this photograph:

• North Table Loop, Jefferson County, Colorado: near access road.
• Field Notes: Coll. No. 1504, 12 Jul 2016.

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Scanned 11 December 2016.

Coll. No. 1427, 15 June 2016, characters observed: Perennial herb, to 60 cm.; Leaves, basal, to 140 mm. × 50 mm., oblanceolate in shape, base conspicuously tomentose, bipinnately dissected to filiform segments, ultimate leaf divisions 12-19 mm., cauline, reduced above, #7-8; Heads, 10-16 per stem; Phyllaries, in 1 series, 6 mm. × 2.8-4.0 mm. wide, green, tomentose, margins chartaceous; Flowers, 1 kind; Disk flowers, corollas, 3.5 mm., yellow; Pappus, crown of scales, 0.8-1.2 mm.; Cypsela, 3 mm., hairy all over to just on margins.

Article records that use this photograph:

• Field Notes: Coll. No. 1427, 15 Jun 2016.

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Photographed 12 December 2017.

Article records that use this photograph:

• Field Notes: Coll. No. 1663, 16 Jun 2017.

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Scanned 29 Jan 2014.

Coll. No. 289, 26 May 2001, characters observed: Annual, tap-rooted, to 40 cm.; Leaves, basal and cauline, alternate, dissected into linear lobes, glandular punctate; Inflorescence, composed of 2 kinds of flowers; Phyllaries, in 2 equal series (appearing as though outer < inner), outer basally fused, without large glands; Receptacle epaleate; Pappus of well-developed scales on ray and disk flowers.

Article records that use this photograph:

• Wild Horse Canyon Road - Mojave National Preserve: near Wild Horse Mesa.
• Field Notes: Coll. No. 289.

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Photographed 28 June 2018.

Location records that use this photograph:

• Pass Lake, Summit County, Colorado

Article records that use this photograph:

• Field Notes: 28 Jun 2018.
• U. S. Highway 6: near Loveland Pass.

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Photographed 2 Februrary 2020.

Coll. No. 2189, 5 August 2019, characters observed: Perennial, sub-shrub, 20 cm., caudex, branched, woody; Stem, clusters of tomentum, glandular; Leaves, basal and cauline, 25-60 mm. × 15-15 mm. wide, reduced distally, pinnately lobed into 3 linear segments, 0.8-1.8 mm. wide, glandular punctate, little bits of tomentum here and there, margins, entire; Inflorescence, head enclosed by an involucre, 1 per stem, showy, flat-topped, not overtopped by leaves; Peduncles, 40 mm., inconspicuously glandular; Involucre, 5 mm. × 10 mm. wide, hemispheric, glandular, scattered tomentose; Phyllaries, 2 series, series 1, 4.5 mm. × 2 mm. wide, fused ½, lanceolate, series 2, 4 mm. × 1.5 mm. wide, widest above middle; Receptacle, conic, epaleate; Flowers, 2 kinds; Ray flowers, #8-10, tube 1.9 mm. + blade 5.5 mm. × 4.8 mm. wide, obovate, yellow, fertile; Disk flowers, many, tube 3.5 mm. + lobes 0.4 mm., throat expanding, yellow; Pappus, few, well-developed scales, 1.8 mm., ±equal; Fruit (cypsela), 2.5 mm., hairy.

Article records that use this photograph:

• Colorado, Chaffee County, County Road 311: collecting locality.
• Field Notes: Coll. No. 2189, 5 Aug 2019.

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Scanned 2 Februrary 2020.

Coll. No. 2189, 5 August 2019, characters observed: Perennial, sub-shrub, 20 cm., caudex, branched, woody; Stem, clusters of tomentum, glandular; Leaves, basal and cauline, 25-60 mm. × 15-15 mm. wide, reduced distally, pinnately lobed into 3 linear segments, 0.8-1.8 mm. wide, glandular punctate, little bits of tomentum here and there, margins, entire; Inflorescence, head enclosed by an involucre, 1 per stem, showy, flat-topped, not overtopped by leaves; Peduncles, 40 mm., inconspicuously glandular; Involucre, 5 mm. × 10 mm. wide, hemispheric, glandular, scattered tomentose; Phyllaries, 2 series, series 1, 4.5 mm. × 2 mm. wide, fused ½, lanceolate, series 2, 4 mm. × 1.5 mm. wide, widest above middle; Receptacle, conic, epaleate; Flowers, 2 kinds; Ray flowers, #8-10, tube 1.9 mm. + blade 5.5 mm. × 4.8 mm. wide, obovate, yellow, fertile; Disk flowers, many, tube 3.5 mm. + lobes 0.4 mm., throat expanding, yellow; Pappus, few, well-developed scales, 1.8 mm., ±equal; Fruit (cypsela), 2.5 mm., hairy.

Article records that use this photograph:

• Colorado, Chaffee County, County Road 311: collecting locality.
• Field Notes: Coll. No. 2189, 5 Aug 2019.

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Scanned on 8 Feb 2014.

There is a ring of paleae amongst the disk flowers.

Coll. No. 966, 22 May 2013, characters observed: Perennial, tufted herb, to 8 cm.; Stem unarmed; Leaves, alternate, sessile, 5.5 mm. × 2 mm. wide, firm, oblong, tip acuminate, margin white, entire, scabrous; Inflorescence of two kinds of flowers, radiate; Heads solitary; Receptacle, epaleate (single ring of paleae buried among the disk flowers); Phyllaries, in 3 ±defined series, graduated, outer < inner, inner bases white, tips herbaceous, margin scarious, veins 1, resin-filled unknown; Rays, blue, oblong, style present; Disk, corolla, yellow; Pappus of well-developed bristles, #>20, few short outer bristles, many long inner bristles, cylindric, short plumose.

Article records that use this photograph:

• Field Notes: Coll. No. 966.

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Scanned on 8 Feb 2014.

Coll. No. 966, 22 May 2013, characters observed: Perennial, tufted herb, to 8 cm.; Stem unarmed; Leaves, alternate, sessile, 5.5 mm. × 2 mm. wide, firm, oblong, tip acuminate, margin white, entire, scabrous; Inflorescence of two kinds of flowers, radiate; Heads solitary; Receptacle, epaleate (single ring of paleae buried among the disk flowers); Phyllaries, in 3 ±defined series, graduated, outer < inner, inner bases white, tips herbaceous, margin scarious, veins 1, resin-filled unknown; Rays, blue, oblong, style present; Disk, corolla, yellow; Pappus of well-developed bristles, #>20, few short outer bristles, many long inner bristles, cylindric, short plumose.

Article records that use this photograph:

• Coyote Springs Road, Mono County, California: near pass.
• Field Notes: Coll. No. 966.

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Scanned on 8 Feb 2014.

Coll. No. 966, 22 May 2013, characters observed: Perennial, tufted herb, to 8 cm.; Stem unarmed; Leaves, alternate, sessile, 5.5 mm. × 2 mm. wide, firm, oblong, tip acuminate, margin white, entire, scabrous; Inflorescence of two kinds of flowers, radiate; Heads solitary; Receptacle, epaleate (single ring of paleae buried among the disk flowers); Phyllaries, in 3 ±defined series, graduated, outer < inner, inner bases white, tips herbaceous, margin scarious, veins 1, resin-filled unknown; Rays, blue, oblong, style present; Disk, corolla, yellow; Pappus of well-developed bristles, #>20, few short outer bristles, many long inner bristles, cylindric, short plumose.

Article records that use this photograph:

• Field Notes: Coll. No. 966.

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Scanned 23 August 2013.

Article records that use this photograph:

• Coyote Springs Road, Mono County, California: at Coyote Spr.
• Field Notes: Coll. No. 895.

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Photographed 25 August 2012.

Article records that use this photograph:

• Coyote Springs Road, Mono County, California: at Coyote Spr.
• Field Notes: Coll. No. 895.

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Scanned 23 August 2013.

The phyllaries of the flower head at lower left have been removed.

Article records that use this photograph:

• Coyote Springs Road, Mono County, California: at Coyote Spr.
• Field Notes: Coll. No. 895.

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Photographed 24 August 2012.

Article records that use this photograph:

• Coyote Springs Road, Mono County, California: at Coyote Spr.
• Field Notes: Coll. No. 895.

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Photographed 8 January 2018.

Article records that use this photograph:

• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Lactuca serriola.
• Field Notes: Coll. No. 1749, 31 Aug 2017.

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Scanned 29 Dec 2014.

Coll. No. 1036, 31 August 2013, characters observed while keying: Herbaceous annual or biennial to 1.5 m.; Sap copious milky; Leaves cauline widely clasping; Head with only ray flowers (liguliflorus); Receptacle epaleate; Pappus of bristles, smooth; Corolla yellow; Fruit ±compressed, beaked, slender, 5 ribs per face, wing-margined.

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Scanned 29 Dec 2014.

Coll. No. 1036, 31 August 2013, characters observed while keying: Herbaceous annual or biennial to 1.5 m.; Sap copious milky; Leaves cauline widely clasping; Head with only ray flowers (liguliflorus); Receptacle epaleate; Pappus of bristles, smooth; Corolla yellow; Fruit ±compressed, beaked, slender, 5 ribs per face, wing-margined.

Article records that use this photograph:

• Field Notes: Coll. No. 1036.

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Scanned 28 October 2013.

Coll. No. 95, 29 April 1997, characters observed while keying: Annual, to 15 cm., tap-rooted; Stem erect, variously short straight hairy; Inflorescence, solitary heads, with strap-shaped corollas present, head composed of 2 kinds of flowers, ray flowers 8, disc flowers ≥25; Phyllaries, in 1 series, 5.5 mm., with black tack-shaped glands and few hairs of varying length, margins folded enclosing ray flowers; Receptacle, paleate with a single ring of paleae separating ray and disc flowers; Pappus, on disc flowers only, 10 awl-shaped scales; Fruit, mature ray fruit compressed front-to-back, adaxial face covered by phyllary margins.

Article records that use this photograph:

• Wild Horse Canyon Road - Mojave National Preserve: near Wild Horse Mesa.
• Field Notes: Coll. No. 95.

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Scanned 25 Jan 2014.

Coll. No. 274, 24 Apr 2001, characters observed: Annual, tap-rooted, to 15 cm.; Stem, leaves, and phyllaries with round black stalked glands and white hairs; Inflorescence, some flowers of head have ligulate flowers, head composed of 2 kinds of flowers, head radiate; Phyllaries in 1 series, each subtending a ray flower, margins folded, enclosing a ray flower; Receptacle, paleate, flat; Ray flowers, #8, pale yellow; Disk flowers, #±20; Pappus awl-shaped and fine bristles; Fruit, mature ray compressed front to back, adaxial face covered by papery phyllary margins.

Article records that use this photograph:

• Field Notes: Coll. No. 274.

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Scanned 29 October 2013.

1. Ray flower and phyllary, adaxial view.
2. Ray flower, still inserted in phyllary, adaxial view.
3. Ray flower, still inserted in phyllary, abaxial view.
4. Disc flower, poorly developed.
5. Disc flower in front of palea, apparently attached at base.
6-7. Palea.
8-11. Disc flowers.

Article records that use this photograph:

• Wild Horse Canyon Road - Mojave National Preserve: near Wild Horse Mesa.
• Field Notes: Coll. No. 95.
• Glossary: palea.

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Scanned 25 Jan 2014.

Coll. No. 274, 24 Apr 2001, characters observed: Annual, tap-rooted, to 15 cm.; Stem, leaves, and phyllaries with round black stalked glands and white hairs; Inflorescence, some flowers of head have ligulate flowers, head composed of 2 kinds of flowers, head radiate; Phyllaries in 1 series, each subtending a ray flower, margins folded, enclosing a ray flower; Receptacle, paleate, flat; Ray flowers, #8, pale yellow; Disk flowers, #±20; Pappus awl-shaped and fine bristles; Fruit, mature ray compressed front to back, adaxial face covered by papery phyllary margins.

Article records that use this photograph:

• Wild Horse Canyon Road - Mojave National Preserve: near Wild Horse Mesa.
• Field Notes: Coll. No. 274.

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