尼泊尔独活 ni po er du huo

Heracleum nepalense var. bivittatum C. B. Clarke; Tetrataenium nepalense (D. Don) Mandenova.

Plants stout, to 2 m high. Root cylindrical, ca. 15 cm long. Stem solitary, pubescent. Basal leaves long-petiolate; leaf blade broad-ovate, 20–45 × 20–35 cm, trifoliolate or 1–2-pinnate, pinnae 3–7 pairs; leaflets broadly ovate, 9–20 × 5–12 cm, both surfaces finely pubescent, especially along veins, margins serrate. Cauline leaves similar to the basal, reduced upward, smaller, 3-lobed sessile on expanded sheaths. Umbels (11–)15–30 cm wide; bracts 1–5, linear or absent; rays numerous, (8–)15–60(or more), 6–9 cm, unequal, extending in fruit; bracteoles 5–8, linear, unequal, 5–9 mm, persistent; umbellule 8–30-flowered. Calyx teeth subulate. Petals white, occasionally pinkish, outer flowers in umbel conspicuously radiant; radiant petals 2-lobed, to 3 × 2.3 mm. Young ovary densely hairy. Fruit obovoid, 9–11 (–17) × 7–10(–14) mm; dorsal ribs filiform, lateral ribs broadly winged, wings 2.2–4 mm wide; vittae filiform, solitary in dorsal furrows, extending to 2/3 length of mericarp, 1–2 in lateral furrows, shorter than dorsal, 2–4 on commissure, about 2/3 as long as mericarp. Seed face plane. Fl. and fr. Jun–Sep.

Forests, scrub, grassy slopes, roadsides; 2000–4000 m. N and W Yunnan [Bhutan, NE India, Myanmar, Nepal, Sikkim].