Noun | 1. | ![]() asterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs aster family, Asteraceae, Compositae, family Asteraceae, family Compositae - plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia rattlesnake root - a plant of the genus Nabalus cankerweed, Nabalus alba, Prenanthes alba, white lettuce - herb of northeastern North America having drooping clusters of yellowish-white flowers; sometimes placed in genus Prenanthes gall of the earth, lion's foot, Nabalus serpentarius, Prenanthes serpentaria - common perennial herb widely distributed in the southern and eastern United States having drooping clusters of pinkish flowers and thick basal leaves suggesting a lion's foot in shape; sometimes placed in genus Prenanthes |