| Rosaceae | |
Crataegus douglasii fo. badia
| Sarg. | Bot. Gaz. 44(1): 65–66 | 1907 |
| Rosaceae | |
Crataegus douglasii var. douglasii
| | | |
| Rosaceae | |
Crataegus douglasii var. duchesnensis
| S.L. Welsh | Great Basin Naturalist 42(1): 10 | 1982 |
| Rosaceae | |
Crataegus douglasii var. rivularis
| (Nutt.) Sarg. | Gard. & Forest 2: 401 | 1889 |
| Rosaceae | |
Crataegus douglasii var. suksdorfii
| Sarg. | Bot. Gaz. 44(1): 65 | 1907 |