Herb, up to 360 mm tall. Radical leaves unequally pinnatipartite, terminal segment mostly larger than the rest, cauline leaves small or depauperate, trifid. Flowers bright yellow.
Perennial herb, up to 0.5 m high in flower; softly hairy. Leaves compound; radical and cauline leaves; leaflets broadly ovate, ± 75 x 50 mm, terminal segment mostly larger than rest; cauline few, small or depauperate, trifid. Flowers: ± 35 mm in diameter, bright yellow; Oct.-Mar. Fruit a cluster of achenes borne on a cylindrical, dry receptacle.