- Linaria vulgaris is a perennial herb that can reach 3.3 ft. (1 m) tall with erect, smooth stems that emerge in clumps from a spreading root system.
- Leaves are nearly sessile, drooping, linear and 1-2 in. (2.5-5 cm) long. Leaves can sometimes be sparsely covered by long hairs.
- Flowering occurs from May to September, when yellow/white, snapdragon-like flowers develop. Flowers, including the spur, are 0.6-1.2 in. (1.5-3 cm) long and occur in racemes at the apex of the stems.
- Fruits are capsules that are 0.4-0.5 in. (9-12 mm) long. Each capsule contains small, flat blackish seeds with a papery wing.
- Ecological Threat
- Linaria vulgaris occurs in fields, pastures, roadsides, undisturbed prairies and rangelands. It is native to Europe and was introduced into North America, as an ornamental, in the mid 1600s.
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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
Invasive Listing Sources
- Alaska Noxious Weeds
- California Invasive Plant Council
- City of Ann Arbor Michigan Parks and Recreation
- Colorado Noxious Weeds
- Connecticut Department of Environmental Protection
- Faith Campbell, 1998
- Forest Service-Alaska, 2004
- Great Lakes Early Detection Network
- 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.
- Idaho Noxious Weeds
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- Mid-Atlantic Exotic Pest Plant Council, 2005
- Montana Noxious Weeds
- Native Plant Society of Oregon, 2008
- Nevada Noxious Weeds
- New Jersey Department of Agriculture, Division of Plant Industry, 2004
- New Mexico Noxious Weeds
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Oregon Noxious Weeds
- Pacific Northwest Exotic Pest Plant Council, 1998
- South Dakota Noxious Weeds
- Utah Noxious Weeds
- Washington Noxious Weeds
- WeedUS - Database of Plants Invading Natural Areas in the United States
- Wyoming Noxious Weeds
Other System LinksPlants: LIVU2
NPDN Pest: PEUAIBD
NPDN Host: 36419
|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.|