Geum laciniatum Murray
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Stem 4–10 dm, hirsutulous with mostly de flexed hairs; lower lvs long-petioled, pinnately compound, the segments pinnately lobed and incised; upper lvs 3-foliolate with cuneate-obovate segments, or merely 3-lobed; pedicels minutely puberulent and densely hirsute, the hairs commonly 1–1.5 mm long; sep triangular, 4–10 mm; pet white, 3–5 mm; head of achenes subglobose, 12–18 mm; receptacle glabrous or with a few short bristles; achenes 3–5 mm, excluding the style, glabrous or sparsely hirsute; 2n=42. In moist or wet soil; N.S. to s. Ont. and Mich., s. to N.J., w. Va., W.Va., Ky., and Mo. May, June.