Up to ± 2 dm. tall, with rather slender stock. Lvs mainly radical, rosulate, pinnate, up to 5 cm. long, sparsely to densely clad in slender hairs; terminal lflt c. 1-2 cm. long, broad-ovate to suborbicular, sharply serrate-dentate; lateral lflts 5-10 pairs, small, incised. Scapes simple to sparingly branched above, erect, up to 2 dm. long, pubescent, with intermingled long hairs; bracts lflike to reduced, incised, in several pairs. Fls few, c. 6-9 mm. diam.; calyx-lobes deltoid, bractlets minute; petals 5-6, white, suborbicular. Receptacle elongate, villous; achenes glab., ∞, subturgid, c. 2 mm. long, narrow-oblong; style very short, glab., recurved.

2n = 70

Erect herb up to 8-(25) cm high at flowering, arising from a slender stock. Basal lvs up to 7-(12) cm long, white-pilose, imparipinnate; lateral leaflets in up to 10 pairs, reduced and often minute; terminal leaflet 10-25 mm long, serrate-dentate; cauline lvs few and bract-like, deeply toothed. Peduncle up to 8-(25) cm high. Infl. usually of several fls, very rarely fls solitary. Petals (1)-2-3-(5) mm long, white. Achenes usually glabrous, rarely with a few hairs on shoulder.