英语释义
1. any of a North American genus (Echinacea, especially E. purpurea) of coarse perennial composite herbs with thick rough leaves and long-stalked flower heads having purplish-brown cone-shaped disks and usually pink to purplish rays
2. any of three composite herbs (Echinacea purpurea, E. pallida, and E. angustifolia) which have usually reddish purple to pale pink ray flowers and whose various parts (as the dried rhizome, stems, or leaves) are used in the preparation of the dietary supplement echinacea