Plumeless Thistle (Curled Thistle, Bristly Thistle)

Authors

L.-T. Kok, Virginia Polytechnic Institute and State University
A. Gassmann, CABI Bioscience Centre Switzerland

Document Type

Article

Date of this Version

2002

Comments

In: Van Driesche, R., et al., 2002, Biological Control of Invasive Plants in the Eastern United States, USDA Forest Service Publication FHTET-2002-04, 413 p.

Abstract

Plumeless thistle, Carduus acanthoides L., is an introduced Eurasian noxious weed in pastures, rangelands, croplands, and along highways in 19 of the contiguous states in the United States (Frick, 1978). Carduus acanthoides and Carduus nutans L. in the northeastern United States often occupy the same habitats, such as overgrazed pastures and disturbed roadsides, and these species sometimes occur as mixed stands.