Eastern purple-coneflower,Purple-coneflower,Purple coneflower,Eastern purple coneflower,Purple cone-flower,Broad-leaved purple coneflower | Rudbeckia purpurea, Brauneria purpurea, Echinacea purpurea fo. liggettii, Echinacea purpurea var. serotina, Rudbeckia purpurea var. serotina, Helichroa alba, Helichroa amoena, Helichroa crocea, Helichroa elatior, Helichroa fusca, Echinacea intermedia, Helichroa fuscata, Rudbeckia hispida, Helichroa purpurea, Helichroa uniflora, Lepachis purpurea, Helichroa linnaeana, Echinacea purpurea var. arkansana, Echinacea purpurea f. ligettii, Echinacea serotina |