Sepals 5, up to 3 mm long. Pistils few, densely hairy, with filiform styles near base. Various species associated with it in montane habitats include Empetrum nigrum, Juncus trifidus, Minuartia glabra, M. groenlandica, Prunus pumila, and Paronychia argyrocoma. Potentilla tridentata apparently is mycotrophic, which may enhance its capacity to be a pioneer species on rocky substrates. It may be more abundant now at this locality than it has been during the past.
Habitat destruction is the major threat.
If rocks are removed and habitat is drastically altered, the plants may not survive. There is a remote chance that fungal diseases may be a threat. Members of the rose family often are adversely affected by various fungi. Tracts of land with rocky pioneer habitat conditions need to be preserved. Potentilla tridentata has high recovery potential.