Photo by Leslie Eguchi
Photo by Leslie Eguchi
Wildflowers of Southern Arizona
Smooth Brome.
Bromus inermis.
Grass (Poaceae) Family.
Duration: Perennial. Nativity: Non-Native. Lifeform: Graminoid. General: Strongly rhizomatous perennial, with erect stems 50-130 cm, singly or a few together, 3-5 nodes, usually glabrous, rarely pubescent, with glabrous sheaths, rarely pubescent or pilose. Vegetative: Blades thin, 11-35 cm long, 5-15 mm wide, flat, glabrous, rarely pubescent or pilose, scabrous on margins; ligules to 3 mm, membranous to erose ciliolate. Inflorescence: Open erect panicle 10-20 cm, branches ascending or spreading; spikelets 20-40 cm, elliptic to lanceolate, terete to moderately laterally compressed, brownish to bronze colored at maturity, purplish when young, with 8-10 florets; glumes subequal, glabrous, lower 6-8 mm, weakly 1 veined, upper 7-10 mm, 3-veined; lemmas 9-13 mm, elliptic to lanceolate, rounded over midvein, glabrous and smooth, margins sometimes sparsely puberulent, apices acute to obtuse, entire, awns absent or to 3 mm, straight, arising less than 1.5 mm below the lemma apices. Ecology: Found on disturbed soils, often in flats and pastureland from 6,000-9,000 ft (1829-2743 m); flowers June-September. Notes: Distinguished by the strongly rhizomatous nature and short awns. Etymology: Bromus is from Greek bromo, for stinking, while inermis means unarmed or without prickles.
Santa Catalina Mountains
Turkey Run.
Location: Along left side of road just before water tanks.
6/21/17
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