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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.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rudbeckia.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of rudbeckia
New Latin, from Olof Rudbeck †1702 Swedish scientist
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