Slender herb up to 15 cm. tall, sparsely clad in long white hairs to glabrate; stock short, slender. Lvs all radical on very slender petioles up to 5 cm. or more long; sheath short, membr. Lamina narrow-oblong in outline, 2-5 cm. long, bipinnate to bipinnatisect to multifid, primary pinnae in up to 6 pairs, final segs linear to linear-lanceolate, acute. Scapes very slender, nude, up to 10 cm. or more long, 1-fld. Fls 1-2 cm. diam.; sepals 5, ± glab., oblong; petals 5-(10), twice length of sepals, golden yellow, narrow obovate, rounded to minutely retuse at apex; gland small, basal. Fruiting heads globose, small; achenes turgid, glab.; style short, subulate, straight.