crownvetch |
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| Fabales > Fabaceae > Securigera varia (L.) Lassen
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| Synonym(s): purple crownvetch |
Crownvetch is a low-growing, herbaceous vine that usually forms thickets up to 3 ft. (0.9 m) in height. The leaves are pinnately compound with 9 to 25 pairs of leaflets and a terminal leaflet. Leaflets are 0.75 in. (1.9 cm) long. Flowering occurs in the summer. The pea-like, fragrant flowers are white to pink to purple and resemble a large clover flower. Crownvetch reproduces and spreads rapidly by rhizomes as well as seeds. It forms dense thickets in open, disturbed areas such as fields and roadsides. Once established it is difficult to remove. Crownvetch is native to Europe, Asia and Africa. It was first introduced into North America around the 1950s and has been widely planted for erosion control. |
Identification, Biology, Control and Management Resources
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Selected Images from Invasive.org
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Flower(s);
Richard Old, XID Services, Inc., Bugwood.org
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Infestation;
James H. Miller, USDA Forest Service, Bugwood.org
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Flower(s);
Dan Tenaglia, Missouriplants.com, Bugwood.org
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Flower(s);
Dan Tenaglia, Missouriplants.com, Bugwood.org
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Flower(s); close-up of flower clusters
Dave Powell, USDA Forest Service, Bugwood.org
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Flower(s);
UAF Cooperative Extension Archive, University of Alaska - Fairbanks, Bugwood.org
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Plant(s); in flower
Richard Old, XID Services, Inc., Bugwood.org
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Foliage;
Dan Tenaglia, Missouriplants.com, Bugwood.org
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Infestation; Sioux County, IA
Chris Evans, River to River CWMA, Bugwood.org
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Foliage;
Ohio State Weed Lab Archive, Ohio State University, Bugwood.org
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Seed(s);
Ken Chamberlain, The Ohio State University, Bugwood.org
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Fruit(s); fruit and seeds
Steve Hurst, 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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Invasive Reference(s):
Check Invasive.org for most current lists.
- Georgia - EPPC list
- Kentucky - EPPC List
- Rhode Island - Noxious Weed Law
- Tennessee - EPPC List
- Texas - Invasive Plant List
- Virginia - Invasive Alien Plant Species
- Mid-Atlantic - 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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