Haplosphaera himalayensis Ludlow

Plants 80–120 cm. Root little-branched; rootstock 1–1.5 cm thick, clothed with remnant sheaths. Basal leaves numerous, petioles 10–15 cm; blade ovate-triangular, 12–15 × 13–15 cm, 3-pinnate, rigid when dry; pinnae 3–6 pairs, triangular or narrowly ovate-triangular; pinnules 3–4 pairs, lower pinnules short-petiolulate, pinnatisect; ultimate segments mucronate, acute-dentate. Umbels 2–6, 1.5–2.5 cm across, rays elongating in fruit becoming conspicuously compound umbel when mature; peduncles 5–10 cm; bracts absent; umbellules 6–18-flowered; pedicels stout, 2–3 mm; bracteoles 4–8, subulate, ca. 6 mm. Petals dark brown, broad-ovate, spoon-like, ca. 1.5 × 1–1.2 mm, apex acute. Filaments greenish white, ca. 1 mm; anthers dull green. Fruit broadly obovoid, ca. 3 × 1.5 mm; ribs conspicuous. Fl. and fr. Aug–Sep.

SE Qinghai, SE Xizang (Nyingchi) [Bhutan, NE India].

Mountain slopes; ca. 3900 m.

Haplosphaera himalayensis là một loài thực vật có hoa trong họ Hoa tán. Loài này được Ludlow mô tả khoa học đầu tiên năm 1976.

西藏单球芹（学名：Haplosphaera himalayensis）为伞形科单球芹属的植物。分布在不丹以及中国大陆的西藏等地，生长于海拔3,900米的地区，一般生于山坡，目前尚未由人工引种栽培。