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   Musk Thistle Carduus nutans   Rosette Deeply lobed leaves are distinguished by a dark green blade with a prominent light green midrib. Adult Musk thistle is a biennial or winter annual. Four to six foot tall plants are common. Flower Flowers may be violet, purple, or rose colored. Flowers are typically "nodding" or bent over. Ends of stems supporting flowers are often nearly leafless. Bloom is in June and July. Weed Infestation Native to southern Europe and western Asia, musk thistle thrives in pastures and range lands, in waste areas, stream banks, and road sides. Seed Seed is attached to a soft parachute-like plume. 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