Eastern Mojave Vegetation Coll. No. 2841, Bromus sterilis.  


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  Poaceae Bromus sterilis
Photographed 8 November 2022.

Plants of Lippincott Ranch
Boulder and Jefferson Counties, Colorado

Bromus sterilis L.  Poverty Brome.

Lippincott Ranch, Jefferson County, Colorado. About 150 m. north of Bull Gulch, 1.49 km. north northwest of the main gate, 3.38 km. south of the GNIS location of Eldorado Springs. 39.9092N, 105.2774W. WGS 1984 Elev. 2010 m. Moderate south-facing slope in open ponderosa pine woodland. Other grasses collected nearby: Bromus briziformis, B. lanatipes, and Danthonia spicata. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with John Vickery 2841. 2-Jul-2022

Coll. No. 2841, 2 Jul 2022, characters observed: Annual grass, 22-33 cm.; Leaves, sheath, closed, scantily pilose, ligule, membranous, 1.5 mm., lacerate, auricles, absent, blade, 15 cm., × 1.8 mm. wide, flat; Inflorescence, 1 per culm, >leaves, panicle, 14 cm. × 2.5 cm. wide; Rachis, not extended, scabrous; Spikelets, #5, 42 mm. × 5 mm. wide, similar, borne singly, pedicels, 25 mm., Compression, lateral; Glumes, lower, 9 mm., upper 13.5 mm., <lowest floret; Florets, 6 per spikelet; Axis, scabrous; Callus, minutely hairy; Lemma, 16.5 mm., >glumes, oddly rolled rather than keeled, mid-vein to margin 0.9-1.1 mm., awn, subterminal, 17.5 mm., straight.

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Date and time this page was prepared: 4/14/2024 5:46:31 PM