- Berberis vulgaris is a deciduous shrub that can reach 13 ft. (4 m) in height. Arching branches which come into contact with the soil can produce new plants.
- The leaves are oval, 0.75-2 in. (2-5 cm) long, 0.25-0.75 in. (1-2 cm) wide, serrate and occur in clusters of 2-5. Each cluster of leaves is subtended by a short, three-branched spine.
- Flowering occurs in May to June, when small, yellow, less than 0.25 in. (6 mm) wide flowers develop in dangling racemes. The flowers have an unpleasant odor.
- Berries are red ellipsoids which are less than 0.3 in. (10 mm) in length and contain 1-3 small black seeds. The fruit is dispersed by birds and other wildlife.
- Ecological Threat
- Berberis vulgaris is shade tolerant which allows it to easily invade woodlands. It is also an alternate host for wheat rust (Puccinia graminis) which makes the control and removal of this invasive shrub of primary importance. It was introduced to America during the 17th century. Fruit of Berberis vulgaris was used to make jam, the flowers for dye and the thorny shrub provided effective livestock fencing. It is native to central and southern Europe.
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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
- Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, 1994.
- Connecticut Invasive Plant List
- Connecticut Invasive Plant Working Group
- EDDMapS Ontario
- Faith Campbell, 1998
- 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.
- 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.
- Massachusetts Noxious Weeds
- Mid-Atlantic Exotic Pest Plant Council, 2005
- New Hampshire Invasive Species Committee. 2005. Guide to Invasive Upland Plant Species in New Hampshire. New Hampshire Department of Agriculture, Markets and Food Plant Industry Division and New Hampshire Invasive Species Committee.
- New Hampshire Prohibited Invasive Species
- New Jersey Department of Agriculture, Division of Plant Industry, 2004
- Pennypack Ecological Restoration Trust, Pennsylvania.
- Reichard, Sarah. 1994. Assessing the potential of invasiveness in woody plants introduced in North America. University of Washington Ph.D. dissertation.
- Vermont Department of Environmental Conservation
- Washington Noxious Weeds
- WeedUS - Database of Plants Invading Natural Areas in the United States
Other System LinksPlants: BEVU
NPDN Pest: PAPABBD
NPDN Host: 34469
CategoriesCategory: Shrub or Subshrub
|Common Name Reference:|| Weed Science Society of America Common Names List|
|Scientific Name Reference:||USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|