| jointed goatgrass |
USDA PLANTS Symbol: AECY USDA ARS GRIN: 1531 ITIS: 182536 NAPIS: PCAABBA |
| Aegilops cylindrica Host | |
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Taxonomic Rank: Liliopsida: Cyperales: Poaceae |
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| Synonym(s): jointgrass | |
Jointed goatgrass is a winter annual that can reach 4 ft. (1.2 m) in height. The leaves are alternate, up to ½ in. (1.2 cm) wide with thin hairs along the margins, sheath openings and auricles. The ligule is short and membranous. Flowering occurs in May to June, when the plants produce red (when mature) or straw-colored spikes. Spikes are cylindrical and contain 2-12 spikelets per spike. The uppermost spikelets have extremely long awns. Jointed goatgrass is native to southern Europe and western Asia. This species is known to hybridize with wheat. |
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Identification, Biology, Control and Management Resources
- Pest Fact Sheet - North American Plant Protection Organization
| Selected Images from Invasive.org | View All Images at Invasive.org |
 Plant(s); Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Seedling(s); Steve Dewey, Utah State University, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); auricles Steve Dewey, Utah State University, Bugwood.org Additional Resolutions & Image Usage |
 Foliage; Steve Dewey, Utah State University, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); compared to wheat USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Steve Dewey, Utah State University, Bugwood.org Additional Resolutions & Image Usage |
 Seed(s); Native to Asia, has seeds that are similar in size and shape to wheat. This make contaminated shipments of wheat very difficult to clean. Phil Westra, Colorado State University, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Richard Old, XID Services, Inc., Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; A native to Asia, is a serious problem in wheat producing areas of the United States. It hybridizes with wheat and outcompetes the crop for nutrients and water. Phil Westra, Colorado State University, Bugwood.org Additional Resolutions & Image Usage |
 Seed(s); Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org Additional Resolutions & Image Usage |
 Diagram or Graphic; Hitchcock, A.S. (rev. A. Chase). 1950. Manual of the grasses of the United States. USDA Misc. Publ. No. 200. Washington, DC. USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org Additional Resolutions & Image Usage |
Taxonomic References:
- USDA, NRCS. 2001. The PLANTS Database, Version 3.1, National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Invasive Listing Sources:
- Faith Campbell, 1998. Plants that Hog the Garden: Invasive Plants in the United States. Fine Gardening Online
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Pacific Northwest Exotic Pest Plant Council, 1998
- WeedUS - Database of Plants Invading Natural Areas in the United States
- Arizona Noxious Weeds
- California Noxious Weeds
- Colorado Noxious Weeds
- Idaho Noxious Weeds
- New Mexico Noxious Weeds
- Oregon Noxious Weeds
- Washington Noxious Weeds
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