毛藁本 mao gao ben

Trachydium hispidum Franchet, Bull. Soc. Philom. Paris, sér. 8, 6: 113. 1894; Ligusticopsis hispida (Franchet) Lavrova & Kljuykov; Ligusticum changii M. Hiroe; Trachydium chinense M. Hiroe; T. rockii H. Wolff.

Plants 8–60 cm, hispid-setulose throughout. Root cylindrical, elongate. Stem very short, base clothed in fibrous remnant sheaths. Leaves lanceolate in outline, 5–10 × 1–3 cm, 2–3-pinnate, primary pinnae 3–4 pairs; ultimate segments lanceolate, 3–5 × 2–5 mm, usually 3–5-lobed, lobes linear. Umbels terminal and lateral, terminal umbels 10–18 cm across; bracts 1–3, 1–2-pinnate; rays (8–)12–22, unequal, elongate up to 24 cm; bracteoles numerous, 2-pinnate, pinnae linear. Calyx teeth ovate or subulate, unequal. Petals white, base cuneate. Styles ca. 1/3 × fruit, reflexed. Fruit oblong-ovoid, ca. 3 × 2 mm; dorsal and intermediate ribs filiform, lateral ribs winged; vittae 1–2 in each furrow, 4 on commissure. Seed face plane. Fl. Aug, fr. Oct. 2n = 22*.

Alpine meadows, grassy slopes, rock crevices; 2600–4500 m. W Sichuan, Xizang, Yunnan.