Echinacea purpurea (L.) Moench [ Echinacea intermedia Lindl. ex Paxton]
no HD illustration available (m1)
Echinacea purpurea (L.) Moench [ Rudbeckia purpurea L.] [Compositae]
L.B. Van Houtte, Fl. Serres, vol. 4 : p. 356 (1848)