genus Prenanthes, Prenanthes - genus of North American and Asiatic perennial herbs having pinnatisect leaves small heads of drooping yellowish to purple flowers; sometimes includes species often placed in genus Nabalus

herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

genus Nabalus, Nabalus - genus of North American and east Asian perennial herbs; sometimes included in genus Prenanthes

cankerweed, Nabalus alba, Prenanthes alba, white lettuce - herb of northeastern North America having drooping clusters of yellowish-white flowers; sometimes placed in genus Prenanthes

herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests