| Ranunculaceae | |
Delphinium decorum subsp. decorum
| | | |
| Ranunculaceae | |
Delphinium decorum var. decorum
| | | |
| Ranunculaceae | ** |
Delphinium decorum var. genuinum
| Huth | Helios 10: 33 | 1892 |
| Ranunculaceae | |
Delphinium decorum var. gracilentum
| (Greene) K.C. Davis | Minnesota Bot. Stud. 2: 439 | 1900 |
| Ranunculaceae | |
Delphinium decorum var. nevadense
| S. Watson | Bot. California 1: 11 | 1876 |
| Ranunculaceae | |
Delphinium decorum var. nudicaule
| (Torr. & A. Gray) Huth | Helios 10: 33 | 1892 |
| Ranunculaceae | |
Delphinium decorum var. patens
| (Benth.) A. Gray | Bot. Gaz. 12(3): 54 | 1887 |
| Ranunculaceae | |
Delphinium decorum var. racemosum
| Eastw. | Bull. Torrey Bot. Club 28(12): 671 | 1901 |
| Ranunculaceae | |
Delphinium decorum var. scaposum
| (Greene) Huth | Helios 10: 33 | 1892 |
| Ranunculaceae | |
Delphinium decorum var. sonomensis
| Eastw. | Bull. Torrey Bot. Club 28(12): 671–672 | 1901 |
| Ranunculaceae | |
Delphinium decorum subsp. tracyi
| Ewan | Univ. Colorado Stud., Ser. D, Phys. Sci. 2(2): 100 | 1945 |
| Ranunculaceae | |
Delphinium decorum var. uliginosum
| (Curran) Huth | Helios 10: 33 | 1892 |