Bermudagrass Johnsongrass Medusahead Quackgrass Field Bindweed Hoary Cress Diffuse Knapweed Russian Knapweed Spotted Knapweed Squarrose Knapweed Purple Loosestrife Perennial Pepperweed Leafy Spurge Yellow Starthsitle Canada Thistle Musk Thistle Scotch Thistle Dyer's Woad Back to main weeds page   Common Burdock Arctium minus   Rosette Common burdock produces a large rosette the first year which can be two to three feet across. Adult In the second year, as a biennial, a multi-branched stem grows three to ten feet tall. Flower Flowers are pink to purple borne in bur-like structures. Weed Infestation Common burdock is native to Europe. It is commonly found along ditch banks, roadsides, game trails, hiking trails, and pastures. It tolerates both shade and full sun. Seed Burs often become attached to clothing and animal hair and are distributed to new areas. Back to main weeds page   Buffalobur Common Burdock Camelthorn Goatsrue Jointed Goatgrass Poison Hemlock Black Henbane Houndstongue Blue-Flowering Lettuce Western Whorled Milkweed Silverleaf Nightshade Yellow Nutsedge Puncturevine Russian-Olive Saltcedar St. Johnswort Bull Thistle Dalmatian Toadflax Yellow Toadflax Velvetleaf