| smooth brome | USDA PLANTS Symbol: BRIN2 U.S. Nativity: Native Habit: Grass or Grasslike |
| Bromus inermis Leyss. |
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Taxonomic Rank: Liliopsida: Cyperales: Poaceae |
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| Synonym(s): awnless brome, Hungarian bromegrass | |
| Native Range: Eurasia (BAIL); temp. Asia, Europe, and U.S.-NC, NE, NW (GRIN) | |
Smooth brome is a perennial grass that is 1 -3 ½ ft. (0.3-1.1 m) tall. The leaves are alternate, 0.25-0.75 in. (0.6-1.9 cm) wide, 6-15 in. (15.2-38 cm) long, glabrous and flat. Flowers are contained in drooping panicles and appear in early to mid-summer. Each branch of the inflorescence has several purplish spikelets, each containing 7-10 flowers. This grass prefers sunny areas along roadsides and also in fields, pastures and prairies. Smooth brome is a native of Europe and was introduced into the United States in the late 1800’s. |
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Identification, Biology, Control and Management Resources
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| Selected Images from Invasive.org | View All Images at Invasive.org |
 Fruit(s); Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Stem(s); Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); ligule Theodore Webster, USDA Agricultural Research Service, Bugwood.org Additional Resolutions & Image Usage |
 Stem(s); Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Foliage; leaf bases Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Diagram or Graphic; Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 277. USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org Additional Resolutions & Image Usage |
 Seedling(s); Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); swollen nodes Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Foliage; John Cardina, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Fruit(s); Ken Chamberlain, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
| EDDMapS Distribution: This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org |
 State(s) Where Reported invasive. Based on state level agency and organization lists of invasive plants from WeedUS database. |
