Rosaceae | |
Crataegus columbiana var. brunetiana
| (Sarg.) Eggl. | Rhodora 10(113): 79 | 1908 |
Rosaceae | |
Crataegus columbiana var. chrysocarpa
| (Ashe) Dorn | Vasc. Pl. Wyoming 299 | 1988 |
Rosaceae | |
Crataegus columbiana var. columbiana
| | | |
Rosaceae | |
Crataegus columbiana var. occidentalis
| (Britton) Dorn | Vasc. Pl. Wyoming 299 | 1988 |
Rosaceae | |
Crataegus columbiana var. piperi
| (Britton) Eggl. | Rhodora 10(113): 79 | 1908 |