Plants to 50 cm. Stem terete, lower parts densely retrorse-villous. Basal leaves numerous, villose; petiole elongate; leaf blade lanceolate-linear, 2-pinnate, ultimate segments lanceolate, base cuneate, slightly crispate, entire or rarely parted. Peduncle elongate, glabrous; bracts numerous, small; rays 5–12, crispate-pubescent; bracteoles linear, longer than pedicels. Calyx teeth obsolete. Petals white, elongate. Fruit ovoid, pubescent; dorsal and intermediate ribs slightly prominent, lateral ribs broadly winged; vittae 1(–2) in each furrow, 2 on commissure, sometimes extending only part-way to base of the mericarp. Fl. and fr. Jul–Sep.

This species is recorded only from the holotype (J. A. Soulié s.n., P).

Forest margins and roadsides on mountain slopes. W Sichuan (Kangding).