Hirsute, cormose perennial, erect, 2-6 dm, the stems bulbously thickened at the base, basal lvs long-petioled, 3-parted, the terminal segment stalked, all segments broadly obovate to subrotund, deeply cleft and lobed; cauline lvs few, much smaller and less divided; fls long- pedicellate; pet broadly obovate, 8-14 mm; anthers 2-3 mm, rarely less; achenes broadly and obliquely obovate, 2.5-3.5 mm, smooth, much thicker apically than basally, distinctly margined; beak stout, outcurved, 0.6-1 mm; 2n=16. Native of Europe, naturalized in fields, meadows, and lawns. Apr.-July.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
There are reports from seven counties. Nieuwland collected it in Lake and Porter Counties and the specimens are in the herbarium of the University of Notre Dame. Clark collected it in Marshall County and the specimen is in the National Herbarium at Washington, D. C. A specimen collected by Flora Haas in Owen County is in the herbarium of Indiana University.
Indiana Coefficient of Conservatism: C = null, non-native