Pueraria montana var. lobata
- Pueraria montana var. lobata is a climbing, deciduous vine capable of reaching lengths of over 100 ft. (30.5 m) in a single season. Its fleshy tap roots can reach 7 in. (18 cm) in width and grow to 9 ft. (3.8 m) deep. These roots can weigh up to 400 lbs. (180 kg).
- Leaves are alternate, compound (with three, usually lobed, leaflets), hairy underneath and up to 5.4 in. (15 cm) long.
- Flowering occurs in midsummer, when 0.5 in. (1.3 cm) long, purple, fragrant flowers hang, in clusters, in the axils of the leaves.
- Fruit are brown, hairy, flat, 3 in. (7.6 cm) long, 0.3 in. (0.8 cm) wide seed pods. Each pod can contain 3-10 hard seeds.
- Ecological Threat
- Preferred habitat includes open, disturbed areas such as roadsides, right-of-ways, forest edges, and old fields. Pueraria montana var. lobata often grows over, shades out and kills all other vegetation, including trees. It is native to Asia and was first introduced into the United States in 1876 at the Philadelphia Centennial Exposition. It was widely planted throughout the eastern United States in an attempt to control erosion.
Munger, Gregory T. 2002. Pueraria montana var. lobata, Fire Effects Information System, U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory 
Global Invasive Species Database. 2011. Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission 
King County Department of Natural Resources and Parks Water and Land Resources Division 
Plant Conservation Alliance's Alien Plant Working Group 
Washington State Noxious Weed Control Board 
Invasive Plant Atlas of New England (IPANE) 
Invasive Plant Atlas of the MidSouth (IPAMS) 
Texas Invasive Plant and Pest Council 
Florida Exotic Pest Plant Council 
Flora of China, www.eFloras.org 
USDA NRCS PLANTS 
USDA ARS GRIN 
Images from Bugwood.org