Potentilla hippiana Lehm.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Much like P. effusa; lfls more sericeous than tomentose above, and increasing regularly in size toward the summit of each lf; sep 5–7 mm, little exceeding the bractlets, slightly shorter than the pet; 2n=42–98. Dry hills, prairies, and plains; Keweenaw Point, Mich.; w. Minn. to Alta. and N.M. June–Aug.