buffalo bur(n = noun.plant) solanum rostratum - North American nightshade with prickly foliage and racemose yellow flowers;
is a kind of nightshade
american buffalo, asiatic buffalo, black buffalo, buffalo, buffalo bill, buffalo bill cody, buffalo bill's wild west show, buffalo carpet beetle, buffalo chip, buffalo clover, buffalo fish, buffalo gnat, buffalo gourd, buffalo grass, buffalo indian, buffalo nickel, buffalo nut, buffalo soldier, buffalo wing, bur, bur fish, bur grass, bur marigold, bur oak, bur reed, cape buffalo, dwarf buffalo, indian buffalo, old world buffalo, trifid bur marigold, water buffalo