genus Haplopappus
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| Noun | 1. | genus Haplopappus - genus of North and South American perennial herbs or shrubs with yellow flowers; in some classifications include species placed in other genera especially Hazardia 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 goldenbush - a plant of the genus Haplopappus camphor daisy, Haplopappus phyllocephalus - annual of southern United States and Mexico having bristly leaves and pale yellow flowers Haplopappus spinulosus, yellow spiny daisy - slender perennial of western North America having weakly bristly leaves and yellow flower heads |