细裂藁本 xi lie gao ben

Ligusticopsis tenuisecta (H. de Boissieu) Leute.

Plants ca. 40 cm, glabrous. Root fusiform. Stem erect, branched. Lower leaves petiolate; blade triangular-ovate, ternate-3–4-pinnate; ultimate segments linear, 3–10 × ca. 0.5 mm. Upper leaves reduced, 1–2-pinnate. Umbels terminal and lateral, terminal umbels 3–5 cm; bracts absent or occasionally 1, linear; rays 15–20, subequal, 2–3 cm, bracteoles 5, linear, ca. equaling umbellules in flower, pubescent; umbellules many-flowered. Calyx teeth obsolete. Petals white, obovate, base cuneate. Styles ca. 2 × stylopodium. Fruit oblong-ovoid, 4–5 × ca. 3 mm; dorsal and intermediate ribs prominent, lateral ribs winged; vittae 3–5 in each furrow, 6–10 on commissure. Seed face slightly concave. Fl. and fr. Aug–Sep.

Scrub, grassy slopes, alpine meadows; 2000–4500 m. W Hubei, NE Sichuan, NW Yunnan.

This species has reputed medicinal value.