Squarrose Knapweed
Squarrose knapweed is a native plant of the eastern Mediterranean area.
Spotted Knapweed
Originally found in Eurasia, spotted knapweed infests rangeland, pastures, roadsides, or any disturbed soils.
Rush Skeletonweed
Native to Eurasia, rush skeletonweed is found in rangeland, cropland, pastures, wasteland, disturbed areas, sagebrush, and along roadsides.
Purple Loosestrife
Purple loosestrife is a European plant probably introduced to the United States as an ornamental.
Medusahead
Medusahead was brought to the United States from Eurasia.
Leafy Spurge
A native plant of Eurasia, leafy spurge is an aggressive invader of pastures, rangeland, stream banks, and waste areas.
Dyers Woad
Dyers woad was introduced from Europe for production of textile dyes.
Dalmatian Toadflax
Dalmatian toadflax was brought to the United States from Europe, probably for ornamental purposes.
Vipers bugloss
A deeply tap rooted biennial or short-lived perennial that grows 1-3 feet tall.
