California Polytechnic State University, Robert F. Hoover Herbarium (OBI)
OBI162895
15147d59-488d-429c-bbc9-394244a1d5c4
82133
Bromus tectorum L.
Poaceae
Tom Schweich
1112
2015-05-26
26-May-2015
United States, Colorado, Jefferson, Golden. On a bank of Nightbird Gulch, east of CO State Highway 93, and south of Iowa Drive, 1.35 km northwest of the GNIS location of Golden.
39.76375778 -105.2328879 WGS 1984.
1784 meters
1784 m
Annual grass, to 30 cm.; Leaves, Sheath, 50 mm., closed proximal 2/3, open distally, Ligule, membranous, 1mm.; Blade, 60 mm.; Inflorescence, open panicle, rachis and pedicels short hairy, Spikelets, 1 per node, 15 mm., laterally compressed; Glumes, 2, sparsely hairy, margins scarious, lower, 2.3 mm., veins indistinct, upper, 4.5 mm. Callus, glabrous, very short, Flores, +/-6, Lemma, 6.5 mm., 0.7 from mid-vein to margin, back rounded, sparsely hairy, tip, forked, teeth 1mm., awned from near tip, awn, 5-7 mm.; Anthers, 3, 0.4 mm. Dimensions are small for B. tectorum, perhaps because of the early date of collection.