smooth brome

Cyperales > Poaceae > Bromus inermis Leyss.
Synonym(s): awnless brome, Hungarian bromegrass

Smooth brome is a perennial grass that is 1-3.5 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 1800s.


Identification, Biology, Control and Management Resources


Selected Images from Invasive.org

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Fruit(s);
Ohio State Weed Lab Archive, Ohio State University, Bugwood.org
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Stem(s);
Ohio State Weed Lab Archive, Ohio State University, Bugwood.org
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Feature(s); ligule
Theodore Webster, USDA Agricultural Research Service, Bugwood.org
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Stem(s);
Ohio State Weed Lab Archive, Ohio State University, Bugwood.org
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Foliage; leaf bases
Ohio State Weed Lab Archive, Ohio State University, Bugwood.org
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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
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Seedling(s);
Ohio State Weed Lab Archive, Ohio State University, Bugwood.org
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Feature(s); swollen nodes
Ohio State Weed Lab Archive, Ohio State University, Bugwood.org
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Flower(s);
Richard Old, XID Services, Inc., Bugwood.org
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Plant(s);
Richard Old, XID Services, Inc., Bugwood.org
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Foliage;
John Cardina, Ohio State University, Bugwood.org
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Fruit(s);
Ken Chamberlain, The Ohio State University, Bugwood.org
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Invasive Reference(s):

Check Invasive.org for most current lists.
  • Kentucky - EPPC List
  • Tennessee - EPPC List
  • Invasive Plants: Guide to Identification and the Impacts and Control of Common North American Species
  • Invasive Plants of the Upper Midwest


External Links


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USDA Forest Service Bugwood University of Georgia