Not an accepted name (status: unknown). The accepted name is Sibbaldia tridentata (Aiton) Paule & Soják, 2009.

Sibbaldiopsis tridenta (Aiton) Rydb. 2% complete

No common name

Monogr. N. Amer. Potentilleae, 187, 187, 1898

There is no corrections for Sibbaldiopsis tridenta yet.