| Ranunculaceae | |
Delphinium tricorne fo. albiflora
| Millsp. | Fl. W. Virginia 322 | 1892 |
| Ranunculaceae | |
Delphinium tricorne var. andersonii
| (A. Gray) Huth | Helios 10: 37 | 1892 |
| Ranunculaceae | |
Delphinium tricorne var. depauperatum
| (Nutt.) Huth | Helios 10: 37 | 1892 |
| Ranunculaceae | ** |
Delphinium tricorne var. genuinum
| Huth | Helios 10: 37 | 1892 |
| Ranunculaceae | |
Delphinium tricorne subsp. menziesii
| (DC.) Huth | Helios 10: 37 | 1892 |
| Ranunculaceae | |
Delphinium tricorne var. menziesii
| Huth | Helios 10(2): 31 | 1892 |
| Ranunculaceae | |
Delphinium tricorne var. multiflorum
| DC. | Syst. Nat. 1: 356 | 1818 [1817] |
| Ranunculaceae | |
Delphinium tricorne var. patens
| (Benth.) A. Gray | Helios 10: 37 | 1892 |
| Ranunculaceae | |
Delphinium tricorne fo. roseum
| E.T. Brown | Castanea 32: 79 | 1967 |
| Ranunculaceae | |
Delphinium tricorne fo. tricorne
| | | |