BITTER SNEEZEWEED, Helenium amarum (Rafln.) H. Rock. 1, plant; 2, flower head; 3, seed. Annual, with short branching taproot. Stems smooth, erect, 6 to 30 inches (15 to 75 cm) tall, branching in upper portion. Leaves numerous, smooth, threadlike, without petioles, alternate, and crowded along main stem and branches. Flower heads about 3/4 inch (1.9 cm) in diameter, ray flowers yellow with toothed tip, surrounding dome-shaped mass of yellow disk flowers. Seed reddish brown, hairy along edges, wedge-shaped, bearing bristle-tipped scales at top. Found in old feedlots, pastures, idle land and wasteland Does not persist under cultivation.