| 14798 | Echinacea angustifolia DC. | | | a | | Echinacea angustifolia DC. | |
| 14799 | Echinacea purpurea (L.) Moench | | | a | | Echinacea purpurea (L.) Moench | |
| 70237 | Echinacea pallida (Nutt.) Nutt. | | | a | | Echinacea pallida (Nutt.) Nutt. | |
| 70238 | Echinacea pallida (Nutt.) Nutt. var. angustifolia (DC.) Cronquist | Echinacea angustifolia DC. var. angustifolia | 409333 | | i | Echinacea pallida (Nutt.) Nutt. var.angustifolia (DC.) Cronquist | Echinacea angustifolia DC. var.angustifolia |
| 315252 | Echinacea tennesseensis (Beadle) Small | | | a | | Echinacea tennesseensis (Beadle) Small | |
| 315909 | Echinacea paradoxa (Norton) Britton | | | a | | Echinacea paradoxa (Norton) Britton | |
| 316221 | Echinacea laevigata (C. L. Boynton & Beadle) S. F. Blake | | | a | | Echinacea laevigata (C. L. Boynton & Beadle) S. F. Blake | |
| 317745 | Echinacea simulata McGregor | | | a | | Echinacea simulata McGregor | |
| 317832 | Echinacea atrorubens (Nutt.) Nutt. | | | a | | Echinacea atrorubens (Nutt.) Nutt. | |
| 318214 | Echinacea spp. | | | a | | Echinacea spp. | |
| 405539 | Echinacea sanguinea Nutt. | | | a | | Echinacea sanguinea Nutt. | |
| 409333 | Echinacea angustifolia DC. var. angustifolia | | | a | i | Echinacea angustifolia DC. var.angustifolia | |
| 409334 | Echinacea angustifolia DC. var. strigosa McGregor | | | a | i | Echinacea angustifolia DC. var.strigosa McGregor | |
| 409335 | Echinacea paradoxa (Norton) Britton var. paradoxa | | | a | i | Echinacea paradoxa (Norton) Britton var.paradoxa | |
| 409336 | Echinacea paradoxa (Norton) Britton var. neglecta McGregor | | | a | i | Echinacea paradoxa (Norton) Britton var.neglecta McGregor | |
| 416972 | Echinacea hybr. | | | a | | Echinacea hybr. | |
| 424026 | Echinacea atrorubens (Nutt.) Nutt. var. graminifolia Torr. & A. Gray | Rudbeckia graminifolia (Torr. & A. Gray) C. L. Boynton & Beadle | 423993 | | i | Echinacea atrorubens (Nutt.) Nutt. var.graminifolia Torr. & A. Gray | Rudbeckia graminifolia (Torr. & A. Gray) C. L. Boynton & Beadle |
| 467579 | Echinacea pallida (Nutt.) Nutt. var. tennesseensis (Beadle) Binns et al. | Echinacea tennesseensis (Beadle) Small | 315252 | | i | Echinacea pallida (Nutt.) Nutt. var.tennesseensis (Beadle) Binns et al. | Echinacea tennesseensis (Beadle) Small |
| 467580 | Echinacea pallida (Nutt.) Nutt. var. simulata (McGregor) Binns et al. | Echinacea simulata McGregor | 317745 | | i | Echinacea pallida (Nutt.) Nutt. var.simulata (McGregor) Binns et al. | Echinacea simulata McGregor |
| 467581 | Echinacea atrorubens (Nutt.) Nutt. var. neglecta (McGregor) Binns et al. | Echinacea paradoxa (Norton) Britton var. neglecta McGregor | 409336 | | i | Echinacea atrorubens (Nutt.) Nutt. var.neglecta (McGregor) Binns et al. | Echinacea paradoxa (Norton) Britton var.neglecta McGregor |
| 489545 | Echinacea atrorubens (Nutt.) Nutt. var. atrorubens | Echinacea atrorubens (Nutt.) Nutt. | 317832 | | i | Echinacea atrorubens (Nutt.) Nutt. var.atrorubens | Echinacea atrorubens (Nutt.) Nutt. |
| 489546 | Echinacea pallida (Nutt.) Nutt. var. pallida | Echinacea pallida (Nutt.) Nutt. | 70237 | | i | Echinacea pallida (Nutt.) Nutt. var.pallida | Echinacea pallida (Nutt.) Nutt. |