OverviewQuackgrass is a perennial, cool-season, rhizomatous grass. The stems are green to whitish, erect to decumbent and can grow to 3 ft (0.9 m) tall. The leaves are 6-15.7 in. (15-40 cm) long and usually have a pair of prominent auricles at the base. Flowering occurs in May to September. The flower spikes are 3.9-11.8 in. (10-30 cm) long and have 3-8 florets per spikelet. Quackgrass is native to Europe and occurs in pastures, gardens, roadsides, and other disturbed open areas.
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EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org
Most Troublesome / Most Common Agricultural Weed List
This map identifies those states that consider this species either most troublesome or most common in at least one commodity. For more information, visit the MTMC project page.
|No Data for this state|
|Troublesome or Common weed in one or more crops|
Invasive Listing Sources
- Alaska Noxious Weeds
- Arizona Noxious Weeds
- California Noxious Weeds
- City of Ann Arbor Michigan Parks and Recreation
- Colorado Noxious Weeds
- East Central Florida CISMA
- Faith Campbell, 1998
- Hoffman, R. & K. Kearns, Eds. 1997. Wisconsin manual of control recommendations for ecologically invasive plants. Wisconsin Dept. Natural Resources, Bureau of Endangered Resources. Madison, Wisconsin. 102pp.
- Iowa Noxious Weeds
- 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.
- Kansas Noxious Weeds
- Michigan Noxious Weeds
- Mid-Atlantic Exotic Pest Plant Council, 2005
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Pacific Northwest Exotic Pest Plant Council, 1998
- Utah Noxious Weeds
- WeedUS - Database of Plants Invading Natural Areas in the United States
- Wyoming Noxious Weeds
CategoriesCategory: Grass or Grasslike
|Common Name Reference:|| USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|
|Scientific Name Reference:||USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|