Up to 3 dm. tall, stock stout, woody; lvs radical and cauline, or the latter reduced to bracts; terminal lflt ± 2-5 × 1·5-6 cm., orbicular to oblong-cordate, doubly crenate, sparsely to densely pilose, veins impressed above, prominent below; lateral lflts in few to 15 pairs, uppermost up to 1·5 cm. long, serrate-crenate, lower much smaller. Scapes up to 3 dm. long, sparingly to much branched, rather stout, villous; cauline lvs in several pairs, up to 3 cm. long, oblong, deeply serrate, or reduced to bracts. Infl. of small panicles, fls sts clustered and surrounded by lflike bracts in young state; peduncles and pedicels elongating in fr., bracteate. Fls c. 1 cm. diam.; calyx pubescent to pilose, lobes c. 5 mm. long, ovate; bractlets small, sts bifurcate; petals 4-5 mm. long, white, ovate to obovate, sts ciliate-margined on claw. Receptacle villous; achenes ∞, flattened, stipitate, c. 1·5 mm. long, villous to ciliate on margins only; styles c. 2.5 mm. long, villous towards achene, tip recurved.

Erect herb up to 30 cm high at flowering, arising from a stout, woody stock. Basal lvs up to 15 cm long, white-pilose, imparipinnate; lateral leaflets in up to 15 pairs, the lower minute but upper sometimes up to 15 mm long; terminal leaflet (1)-2-5-(7) cm long, crenate-dentate and sometimes obscurely lobed; cauline lvs few, oblong, toothed, sometimes very reduced. Peduncle up to 30 cm high. Infl. of (1)-3-8-(25) fls. Petals 4-8-(10) mm long, creamy white. Achenes densely pilose especially on margins.