'Rudbeckia' definitions:
Definition of 'Rudbeckia'
(from WordNet)
noun
North American perennial herbs with showy cone-shaped flower heads [syn: Rudbeckia, genus Rudbeckia]
Definition of 'Rudbeckia'
From: GCIDE
- Rudbeckia \Rud*beck"i*a\, n. [NL. So named after Olaf Rudebeck, a Swedish botanist.] (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. [Webster 1913 Suppl.]