Seseli delavayi Franch.

This species has reputed medicinal value.

Plants 50–90 cm, monocarpic, densely white hispidulous throughout. Caudex simple. Stem solitary, branched from middle, terete. Basal leaves several, petioles 10–16 cm; blade ternatisect, 4–13 × 2–6 cm; leaflets sessile, linear-lanceolate, (40–) 70–130 × 5–10 mm, primary venation parallel, usually white hispid on both surfaces, especially margins and abaxially veins. Cauline leaves few, reduced upwards, leaflets 30–50 × 2–4 mm. Synflorescence corymbose; umbels 1–3(–4) cm across; peduncles elongate, hispidulous; bracts 5–7, linear, ca. 10 × 0.5 mm, bases free, apex caudate; rays 6–8, 5–20 mm, subequal, densely white-hispid; bracteoles 5–7, linear, 6–8 mm, more than 2 × pedicels; umbellules 10–18-flowered; pedicels ca. 4 mm. Petals yellow, obovate, abaxially white-pubescent. Fruit ovoid or short ovoid, slightly dorsally compressed, ca. 3 × 2 mm, densely white hispid; ribs rounded, equal, hidden by indumentum; vittae 1 in each furrow, 2 on commissure. Fl. Aug–Sep, fr. Sep–Oct.

NW Yunnan (Binchuan, Heqing).

Alpine meadows, limestone slopes; 1500–3000(–4500) m.

Seseli delavayi là một loài thực vật có hoa trong họ Hoa tán. Loài này được Franch. miêu tả khoa học đầu tiên năm 1894.

多毛西风芹（学名：Seseli delavayi）为伞形科西风芹属的植物，为中国的特有植物。分布于中国大陆的云南等地，生长于海拔1,700米至4,500米的地区，常生长在高山草坡，目前尚未由人工引种栽培。