Seseli yunnanense Franch.

The roots are used in Yunnan as a regional substitute, known as “song ye fang feng,” for the traditional Chinese medicine “fang feng” (Saposhnikovia divaricata).

Plants 30–80 cm, monocarpic. Caudex simple. Stem solitary, branching above, solid, terete, finely grooved, glabrous. Basal leaves numerous, petiolate; blade triangular or rhombic, 3–10 × 3–10 cm, 2–4-ternately dissected, every divided point articulated; ultimate segments narrowly linear, 7–65 × 0.5–3 mm, entire. Cauline leaves few, 1–3-ternately dissected; uppermost leaf 3-parted or simple. Synflorescence dichotomously branched, corymbose; umbels 2–4 cm across; bracts absent or occasionally 1, subulate, 1.5–4 mm; rays 6–10, 0.3–2(–4) cm, unequal; bracteoles 8–10, lanceolate, ca. 2.5 × 0.5 mm, about equaling flowers, bases connate, margin scarious; umbellules 15–30-flowered; pedicels ca. 2 mm. Calyx teeth obsolete. Petals pale yellow, oblong or almost square, veins 3–5, brown-yellow, conspicuous, abaxially puberulent. Stylopodium low-conic; styles short, stout. Fruit ovoid or oblong-ovoid, compressed dorsally, ca. 3 × 1 mm, glabrous; ribs ca. equal, narrowly keeled or rounded; vittae 1–2 in each furrow, 2–4 on commissure. Fl. and fr. Aug–Oct.

S Sichuan (Dechang, Leibo), NW Yunnan (Binchuan, Dali, Heqing) [Thailand].

Coniferous forests, among shrubs, valleys; 600–3100 m.

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

松叶西风芹（学名：Seseli yunnanense）为伞形科西风芹属的植物，是中国的特有植物。分布于中国大陆的四川、云南等地，生长于海拔600米至3,100米的地区，见于草丛中、疏林山沟阴湿处的、林下、灌木、山坡以及干旱草坡的，目前尚未由人工引种栽培。