ButterweedWordNet Explorer

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

genus of American of east Asian perennial herbs with yellow to orange or red flower rays; sometimes included in genus Senecio

American ragwort with yellow flowers

wild or uncultivated flowering plant

enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weeds