Centaurea virgata (weed)
Centaurea virgata (weed) Lam.
This plant is native to the Mediteraanean region and western Asia, but is invasive in some parts of North America. It is mainly found in grasslands and disturbed habitats. The species can be recognised by the curved floral bracts.
Centaurea virgata var. squarrosa (syn. Centaurea squarrosa) - squarrose knapweed
Publications covering Centaurea virgata (weed)
Weed Science (1999) 47, 62-66
H. Arlen Smith, Wayne S. Johnson, J. Scott Shonkwiler and Sherm R. Swanson (1999)
The implications of variable or constant expansion rates in invasive weed infestations