珠峰阔翅芹 zhu feng kuo chi qin

Heracleum brunonis (de Candolle) C. B. Clarke.

Plants 20–60 cm. Basal petioles 10–25 cm; leaflets 5–9, oblong-ovate, 2–3.5 × 1.5–3 cm, sessile, base rounded, margin irregularly serrate, apex acute, softly pubescent especially abaxially. Umbels 4–6 cm across; rays 4–10, 1.5–3 cm, densely softly pubescent; bracts 4–6, lanceolate-acuminate, 15–30 × 2–5 mm; umbellules 1.5–2 cm across; bracteoles similar to bracts, overtopping flowers. Outer radiant petals to 7 × 4 mm. Styles 3–4 mm. Fruit 6–7 × 5–6 mm, wings ca. 1 mm. Fl. Jul–Aug, fr. Aug–Sep.

Subalpine moist dwarf scrub, among shrubs and boulders; 4200–4300 m. S Xizang [Bhutan, Nepal, Sikkim].