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Any of three genera ( Echinacea, Ratibida, and Rudbeckia). They are weedy plants in the composite...

noun Coneflower of central to southwestern United States. synonyms: Ratibida tagetesPlant similar...

Any member of the coneflower genus Echinacea. Commonly called the purple coneflower, echinacea is...

Either of two North American coneflowers (Rudbeckia hirta and R. Serotina) having flower heads with...

N. Latin names: Echinacea angustifolia, Echinacea pallida, Echinacea purpurea; parts used: rhizome,...