Eastern Mojave Vegetation Coll. No. 3357, Heterotheca villosa.  
 

 

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If you have a question or a comment about this photograph you may write to me at: tomas@schweich.com I sometimes post interesting questions in my FAQ, but I never disclose your full name or address. 		  Asteraceae, Heterotheca villosa
Photographed 11 January 2025.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Asteraceae

Heterotheca villosa (Pursh) Shinners.  Hairy False Goldenaster.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 295 meters west along the southern border of Ranson/Edwards. 39.88449°N, 105.2659°W. WGS 1984 Elev. 1983 m. Ray flowers absent, greatly reduced, or, perhaps, the ligules were all eaten by insects before the collection was made. Probably var. nana.

Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.

Tom Schweich, with Cynthia Hastings 3357. 26-Jul-2024

Coll. No. 3357, 26 July 2024, characters observed: Perennial herb, 25 cm., caudex unknown; Stem, purple, hirsute, short and long hairs; Leaves, basal, none seen, cauline, alternate, sessile, 22 mm. × 5.5 mm. wide, slightly reduced distally, oblong, entire, single nerve (definitely not tri-nerved), glandular, tips, spine-tipped; Inflorescence, 2-3 heads per stem, not showy, >leaves, erect; Involucre, 10 mm. × 13 mm. wide; Phyllaries, 3± series, 7 mm. × 1 mm. wide, lower < rest of involucre, green, tips purple; Receptacle, epaleate; Ray flowers, none seen, probably eaten by insects before collection was made; Disk flowers, many, tube 6 mm. + lobes 0.7 mm., yellow; Pappus, many, well-developed capillary bristles, 6 mm., ±equal; Cypsela, 2 mm. × __ mm. wide, ascending long hairy.

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Date and time this page was prepared: 2/4/2025 12:02:36 PM