Definition of rudbeckia
:any of a genus (Rudbeckia) of North American chiefly perennial composite herbs having showy flower heads with mostly yellow ray flowers and a usually conical scaly receptacle
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This week's gardening tips: To encourage continued blooming, remove spent flowers from bedding plants, such as marigolds, zinnias, pentas, cosmos, salvia and rudbeckia.
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Origin and Etymology of rudbeckia
New Latin, from Olof Rudbeck †1702 Swedish scientist
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