noun
1. any of various plants of the genus Rudbeckia cultivated for their large usually yellow daisies with prominent central cones
• Hypernyms: ↑flower
• Hyponyms: ↑black-eyed Susan, ↑Rudbeckia hirta, ↑Rudbeckia serotina, ↑cutleaved coneflower, ↑Rudbeckia laciniata
• Member Holonyms: ↑Rudbeckia, ↑genus Rudbeckia
2. a wildflower of the genus Ratibida
• Hypernyms: ↑wildflower, ↑wild flower
• Hyponyms: ↑Mexican hat, ↑Ratibida columnaris, ↑long-head coneflower, ↑prairie coneflower, ↑Ratibida columnifera, ↑Ratibida tagetes
• Member Holonyms: ↑Ratibida, ↑genus Ratibida
3. any of various perennials of the eastern United States having thick rough leaves and long-stalked showy flowers with drooping rays and a conelike center
• Hypernyms: ↑flower
• Member Holonyms: ↑Echinacea, ↑genus Echinacea
Useful english dictionary. 2012.