Bupleurum longicaule Wall.

All four varieties have reputed medicinal value. See the taxonomic note under Bupleurum candollei.

Plants 50–70 cm, perennial. Rhizome horizontal, little-branched, gray-brown. Stems solitary or several, erect, little-branched above, branches short or elongate, base without fibrous remnant sheaths. Basal leaves narrow-linear, lanceolate or oblanceolate, 10–12 × 0.5–2 cm, 5–11-nerved, base tapering into a conspicuous petiole, apex acute or acuminate. Cauline leaves sessile; blade linear-lanceolate to ovate-lanceolate, smaller, base broad-cordate and clasping, apex long-acuminate or acute. Umbels 3–8 cm across; bracts 0 or 2–3, lanceolate or ovate, 4–15 × 3–8 mm, unequal, 9–15-nerved; rays 3–12, 2.5–6 cm, unequal, somewhat stout, ribbed; bracteoles (5–)10–12, narrow-lanceolate or suborbicular, ca. 7 × 5 mm, longer than the flowers; umbellules ca. 8 mm across, ca. 20-flowered; pedicels 1.5–2 mm. Petals dark purple or yellow. Stylopodium low-conic, discoid, dark purple. Fruit ovoid or ellipsoid-ovoid, gray-brown, 3.5–5 × 1–1.5 mm; ribs prominent, acute; vittae 3 in each furrow, 4 on commissure. Fl. and fr. Jul–Sep.

Perennial, 15-40 cm tall, 1 or more stems from the base. Lower leaves linear to lanceolate; upper leaves lanceolate, amplexicaul, apices long acuminate. Involucral bracts 1-3, ovate, unequal. Rays 2-8. Involucel of 6-8 oval bractlets, slightly connate at the base, longer than the flowering umbellet, veins 5-7. Petals and stylopodium almost black. Fruit oblong; ridges slightly winged; furrows 3-vittate.

Himalaya (Kashmir, Kumaun, Bhutan), Tibet.

S Gansu, W Hubei, Ningxia, Qinghai, Shaanxi, Shanxi, NE and W Sichuan, E Xizang, NW Yunnan [India, Kashmir, Nepal, Pakistan].

Distribution: Central Asia, Himalayas in India and Pakistan.

3300-4900 m

Forests, grassy places on mountain slopes; 1000–4000 m.

Bupleurum longicaule là một loài thực vật có hoa trong họ Hoa tán. Loài này được Wall. ex DC. mô tả khoa học đầu tiên năm 1830.

长茎柴胡（学名：Bupleurum longicaule）是伞形科柴胡属下的一个种。生长于1000-4000米高度的森林、山坡上的草地。在中国分布于甘肃省南部、湖北省西部、宁夏、青海、陕西、山西、四川东北部及西部、西藏东部、云南西北部。另分布于印度、查谟-克什米尔邦、尼泊尔及巴基斯坦。四种变种均有药用价值。