Rudbeckia

Definition of Rudbeckia

Rud`beck´i`a
n.1.(Bot.) A genus of composite plants, the coneflowers, consisting of perennial herbs with showy pedunculate heads, having a hemispherical involucre, sterile ray flowers, and a conical chaffy receptacle. There are about thirty species, exclusively North American. Rudbeckia hirta, the black-eyed Susan, is a common weed in meadows.

Related Words

aster family, Asteraceae, asterid dicot genus, black-eyed Susan, Compositae, coneflower, cutleaved coneflower, double gold, family Asteraceae, family Compositae, genus Rudbeckia, golden glow, hortensia, Rudbeckia hirta, Rudbeckia laciniata, Rudbeckia laciniata hortensia, Rudbeckia serotina
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