Children (9 direct children, 9 direct and indirect children):
Ranunculus occidentalis var. dissectus
Ranunculus occidentalis var. hexasepalus
Western buttercup
Ranunculus occidentalis var. howellii
Ranunculus occidentalis var. nelsonii
Nelson's buttercup
Ranunculus occidentalis var. occidentalis
Western buttercup
Ranunculus occidentalis var. ultramontanus
Ranunculus occidentalis var. parviflorus
Ranunculus occidentalis var. montanensis
Ranunculus occidentalis var. turneri