Eastern Mojave Vegetation Spikelets of Coll. No. 3098, Elymus lanceolatus var. lanceolatus Pascopyrum smithii.  
 

 

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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. 		  Poaceae Pascopyrum smithii
Photographed 6 January 2024.

Plants of Colorado
Poaceae

Elymus lanceolatus (Scribn. & J. G. Sm.) Gould var. lanceolatus.  Thickspike Wheatgrass.

Pascopyrum smithii, Jan Wingate, 4/24/2024.

Salt Creek, Park County, Colorado. Base of hills, about 255 m. northeast of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.959°N, 106.0054°W. WGS 1984 Elev. 2835 m. Strongly rhizomatous. Occasional at base of hills, stiff soil, edge of Ponderosa pine forest, also out on the plain.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3098. 17-Jul-2023

Coll. No. 3098, 17 July 2023, characters observed: Perennial grass, to 50 cm., strongly rhizomatous; Leaves, sheath, 60+ mm., nodes not exposed, open, ligule, membranous, short, blade, 180 mm., tightly involute; Inflorescence, 1 per culm, >leaves, 2-sided spike, 75 mm. × 10 mm. wide; Spikelets, many, 18 mm. × 4 mm. wide, similar, borne singly, sessile, overlap by ½; Compression, unremarkable; Disarticulation, below the glumes; Glumes, lower, 8 mm., folded, veins, 5, upper, 9.5 mm., <lowest floret, veins, 5(7?), awns, 1.5 mm.; Florets, 8 per spikelet; Lemma, 9.5 mm., >glumes, rolled, short ascending hairs, veins, ≥5, tip, bifid, awns, #1, 1 mm., straight; Palea, 8 mm., <lemma, veins, ciliate, tip, bifid; Anthers, #3, 3 mm.

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Date and time this page was prepared: 12/8/2024 2:16:26 PM