Oenanthe linearis Wall.

Some authors consider both varieties conspecific with Oenanthe javanica (see the taxonomic note under that species).

Plants 30–70 cm. Roots fibrous or fusiform. Stems decumbent, rooting at lower nodes, unbranched or few-branched above. Leaves heteromorphic, lower petioles 1–10 cm; blade triangular-ovate, 3–7 × 2–5 cm, mostly 1-pinnate, rarely 2-pinnate; ultimate segments linear, 20–40 × 1–2 mm, rarely rhombic-ovate or lanceolate, 5–30 × 2–5 mm. Upper leaves sessile, 1-pinnate; pinnae linear, 10–40 × 1–3 mm. Umbels 2–4(–5) cm across, often leaf-opposed; peduncles 2–10 cm; bracts absent, or 1, linear; rays 3–12, 1.5–3 cm, unequal; bracteoles 3–8, linear or linear-lanceolate, 3–6 mm, unequal; umbellules 8–20-flowered; pedicels 1.5–4 mm. Calyx teeth ca. 0.5 mm. Styles ca. 2 mm, reflexed. Fruit ovoid, ca. 2 × 1.5 mm; dorsal and intermediate ribs filiform. Fl. May–Jul, fr. Jul–Aug.

Chongqing, Guizhou, Hubei, Sichuan, Taiwan, Xizang, Yunnan [India, Indonesia, ?Laos, Myanmar, Nepal, Vietnam].

Open forests, Moist shade under shrubs and trees, grassy valley slopes, marshlands, grassy places near water; 800–3000 m.

Oenanthe linearis 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.

线叶水芹（学名：Oenanthe linearis）为伞形科水芹属的植物。分布在印度尼西亚、印度、越南、尼泊尔以及中国大陆的四川、贵州、云南等地，生长于海拔1,350米至2,800米的地区，一般生长在山坡杂木林下溪边潮湿地，目前尚未由人工引种栽培。