Eastern Mojave Vegetation Coll. No. 3380, Bouteloua simplex.  
 

 

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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 Bouteloua simplex
Scanned 17 January 2025.

Plants of Colorado
Poaceae

Bouteloua simplex Lag.  Matted Grama.

Dispersed Camp Site, Jefferson County, Colorado. Along Pike-San Isabel National Forest Road 211, about 3.6 miles generally southwest of its northern end at County Road 126 “Deckers Road,” 59 km. south of Golden. 39.22633°N, 105.30587°W. WGS 1984 Elev. 2324 m. Very small grass. Thin ponderosa pine forest with Erigeron divergens, Heterotheca villosa, Hymenothrix dissecta, Solidago missouriensis, Symphyotrichum porteri, Townsendia grandiflora, Castilleja integra, and Eriocoma nelsonii.

Collected by permit: Pike San Isabel National Forest, 2024, issued: Jun 1, 2024, to: Tom Schweich.

Tom Schweich 3380. 12-Sep-2024

Coll. No. 3380, 12 September 2024, characters observed: Annual grass, to 2 cm., in little tufts; Leaves, sheath, 8 mm., open, ligule, ciliate, 0.2 mm., blade, 12 mm. × 0.8 mm. wide, involute, glabrous; Inflorescence, 1 per culm, <leaves, eyelash-like raceme of 14-15 spikelets, 12 mm. × 3.5 mm. wide; Spikelets, 4 mm. × 1 mm. wide, similar, borne singly, pedicels 0.3 mm.; Disarticulation, above the glumes. Glumes, lower, 1.6-1.7 mm., veins, 1, upper, 3.0-3.2 mm., <lowest floret, veins, 1, awns, 0; Florets, 2 per spikelet, 1 fertile + 1 sterile reduced; Lemma, 4 mm., >glumes, proximally 0.6 mm. straight white hairs mostly along mid-vein and margin, veins, #3, parallel and extended like flattened awns; Palea, 2.5 mm.; Achene, 1.5 mm. × 0.6 mm. wide, flattened, greenish-brown.

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Date and time this page was prepared: 2/4/2025 12:03:00 PM