ˌekəˈnāshēə noun
Etymology: New Latin, from echin- + -acea (feminine of -aceus -aceous)
1. capitalized : a small genus of coarse herbs (family Compositae) having thick rough leaves and long-stalked flower heads with showy purplish, crimson, or yellow rays
2. : the dried rhizome and roots of either of two herbs ( Echinacea pallida and E. angustifolia ) formerly used in the treatment of ulcers and boils