Peucedanum nanum Shan & M. L. Sheh

Plants 15–20 cm, hispid throughout, acaulescent, scapiform. Basal leaves subsessile, with broad long-ovate sheaths; leaf blade ovate-oblong, 2–3-pinnate/pinnatisect, pinnae 3–6 pairs; ultimate segments linear, 3–5 × ca. 1 mm. Cauline leaves 1–2 or absent, reduced upwards. Umbels 4–9 cm across; peduncles stout, 5–12 cm; bracts 3–5, linear, 6–12 × 0.5–1 mm; rays 8–16, stout, unequal; bracteoles 5–10, linear; umbellules 10–20-flowered. Calyx teeth obsolete or inconspicuous. Petals white, obovate, midrib pale yellow, abaxially sparsely pubescent. Anthers purplish-tinged. Styles short. Fruit ovoid, 3.5–4 × 2.5–3 mm, apex purplish, squamose-pubescent; dorsal ribs prominent, densely hispid, lateral ribs narrowly winged; vittae 3–4 in each furrow, 6 on commissure. Fl. and fr. Aug–Sep.

S Xizang (Lhasa, Xigazê).

Dry mountain slopes; 3500–3800 m.