Perennial herb with erect stems, up to 12 dm. tall, somewhat branched into rather loose inflorescences.. Basal leaves trifoliolate; leaflets broadly ovate in general outline, more or less distinctly trilobed, on the lateral leaflets the lobing asymmetric, 7–8 cm. long, 6–6.5 cm. broad, long adpressed hairs on both surfaces, ciliate at the margins; petiole up to 4 dm. long.. Sepals reflexed, sparsely hairy on the outer surface, glabrous on the inner surface.. Petals 5, yellow, up to 5 mm. long.. Achenes in a spherical head, persistent beak short, hooked, margin bordered, sides smooth, flat.. Fig. 4/7, (p. 17).
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