CarduusWordNet Explorer

genus of annual or perennial Old World prickly thistles

genus of more or less advanced dicotyledonous herbs and some trees and shrubs

plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia

European biennial introduced in North America having flower heads in crowded clusters at ends of branches

Eurasian perennial naturalized in eastern North America having very spiny white cottony foliage and nodding musky crimson flower heads; valuable source of nectar