Asteraceae / Compositae
Wild Lettuce; Opium Lettuce; Bitter Lettuce; Great Lettuce; Lactucarium; Laitue vireuse; Poisonous Lettuce; Rakutu-Karyumu-So; Rauschlattich
Biennial, growing up to 2-4 feet, maximum height of 6 feet (cultivated plants usually smaller). The erect stem, springing from a brown tap-root, is smooth and pale green, sometimes spotted with purple. Leaves are from 6 to 18 inches long, flowers are pale yellow, with large open clusters.