Plants 10–30 cm. Rootstock a short, thick rhizome, 3–5 × 0.5–0.8 cm. Stems 1 or 2–4, branching. Basal petioles 5–8 cm, sheaths broadly lanceolate; blade triangular in outline, 1.5–3 × 1.5–3 cm, ternate to 1- or 2-pinnate, basal pinnae petiolulate; ultimate segments oblong-lanceolate, 3–5 × 1–1.5 mm. Umbels 2.5–4 cm across; bracts absent or occasionally 1, linear-lanceolate; rays (3–)5–6(–8), 1–2 cm; bracteoles 3–5, similar to the bract; umbellules 6–10(–15)-flowered; pedicels 2–4 mm, unequal. Calyx teeth obsolete. Petals white or violet, apex palmately 3–4-lobed, lobes lanceolate or oblanceolate. Stylopodium deep purple. Young fruit oblong-ovoid, ca. 1.5 × 1 mm (mature fruit unknown); vittae 2–3 in each furrow, 4 on commissure. Fl. and fr. Jul–Sep.

Shady forests, alpine meadows; 2400–4000 m. E and S Xizang, NW Yunnan [NE Myanmar].