Habitally much like no. 9 [Saxifraga caroliniana A. Gray], avg a little smaller; hypanthium free from the carpels; sep erect or eventually ±spreading; pet more nearly oblong or elliptic, scarcely clawed, less prominently spotted; filaments filiform-subulate. Moist, rocky places; mts. of s. Va., N.C., and Tenn. May-July. (Micranthes c.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.