(Smooth Bromegrass)

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Bromus inermis, Booth Falls, Eagle Co. 4004

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Bromus inermis, Silver Shekel, Breckenridge, Summit Co. 1910

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Bromus inermis, Silver Shekel, Breckenridge, Summit Co. 1918

Scientific Name Bromus inermis USDA PLANTS Symbol BRIN2
Common Name Smooth Brome ITIS Taxonomic Serial No. 40502
Family Poaceae (Grass) SEINet
Reference
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Description Life zones and habitat: Plains to subalpine (4500 to 11800 ft.); common in disturbed areas, meadows, grasslands and forests; planted extensively for forage in pastures and rangelands.
Plant: Perennial grass from rhizomes; erect culms 20 to 40 inches tall, single or a few together.
Foliage: Sheaths usually smooth with auricles sometimes present; flat, smooth blades 2 to 14 inches long and up to 5/8-inch wide.
Inflorescence: Open, erect panicles 4 to 8 inches tall with ascending or spreading branches; spikelets 7/8 to 1-5/8 inches long elliptic to lanceolate, somewhat compressed, sometimes purplish, with 5 to 10 florets; glumes are smooth and unequal with lower 4-9 mm long, upper 7-10 mm; lemmas are smooth, 9-13 mm long without awns or with a short awn tip.
Bloom Period: June to September.
References: "Flora of Colorado" by Jennifer Ackerfield and SEINet.
BONAP Distribution Map
Colorado Status:
Introduced

© Tom Lebsack 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County