24. Ligusticum brachylobum Franchet, Bull. Soc. Philom. Paris, sér. 8. 6: 134. 1894.
短片藁本 duan pian gao ben
Ligusticopsis brachyloba (Franchet) Leute; Peucedanum cavaleriei H. Wolff.
Plants to 1 m tall, stout, puberulent throughout. Root fusiform. Stem erect, striate, hollow, branching, base clothed in fibrous remnant sheaths. Basal petioles 9–25 cm; blade triangular-ovate, 10–20 × 8–18 cm, 3–4-pinnate; ultimate segments linear, ca. 3 × 1 mm. Upper leaves reduced, sessile. Umbels terminal and lateral, terminal umbels 4–6 cm across; bracts 2–4 or absent; rays 15–30, 2–6 cm, scabrid; bracteoles 10–12, linear, densely pubescent, without white membranous margin. Calyx teeth conspicuous, subulate, ca. 0.5 mm. Petals white, broad-obovate, base cuneate. Fruit oblong-ovoid, ca. 5 × 4 mm; dorsal and intermediate ribs raised, lateral ribs winged; vittae 2–3 in each furrow, 4–6 on commissure. Seed face plane. Fl. Jul–Aug, fr. Sep–Oct. 2n = 22*.
Forests, forest margins, alpine scrub and meadows, grassy slopes, stream banks; 1600–4100 m. NE Guizhou, Qinghai, Shaanxi, SE and W Sichuan, E Xizang, Yunnan.
This species is used in Guizhou and Sichuan as a regional substitute, known as “duan pian fang feng,” for the traditional Chinese medicine “fang feng” (see Saposhnikovia divaricata).