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   Buffalobur Solanum rostratum   Rosette Leaves are heavily lobed and have prominent veins. Adult This annual grows one to two feet tall. Flower Yellow, five-lobed flowers adorn buffalobur throughout the summer. Weed Infestation Native to the United States, buffalobur infests corals, gardens, pastures, and waste areas. It grows in most soil types but prefers sandy soils. It is drought resistant making it very competitive with other less drought tolerant species. Seed It has spines on the stems, leaves, and seedheads. Spiney stems 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