Stems 1.5-4 dm from a coarse rhizome, nearly smooth below, more hairy above; basal lvs with a rounded-reniform terminal lfl 5-10 cm wide, shallowly 5-7-lobed, sharply and irregularly serrate, truncate to subcordate at base, and 0-6 much smaller, laciniate lateral lfls rarely over 1 cm; cauline lvs resembling the lateral lfls of the basal lvs; sep triangular, twice as long as the bractlets; pet yellow, 8-15 mm, spreading; mature styles 8-10 mm, hairy about half their length; 2n=42. Damp slopes and alpine meadows in the higher mts. of Me. and N.H. July, Aug. (Sieversia p.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.