FNA's description of P. versicolor says it should only have 3-6 leaflets on each side. Maybe that's not quite right?
P. versicolor or P. breweri?
Sample 1
This potentilla was mixed in clumps with another species, P. flabellifolia.
I did not record which bees were collected from which species.
On serpentine soil in Siskiyou Mountains.