Epilobium amurense Hausskn.

Herbs perennial, erect, with leafy basal soboles, elongated rosettes, or rarely fleshy stolons. Stems (10-)20-150 cm tall, simple or branched, densely strigillose, often mixed with glandular hairs on upper parts, with 2(or 4) ± distinct raised strigillose lines decurrent from margins of petioles, or rarely subglabrous throughout. Leaves subsessile or petioles 1-6 mm; cauline blade ovate to narrowly so, or rarely lanceolate-oblong, 2-9.5 × 0.5-2.5 cm, subglabrous with strigillose margin and veins, base rounded or cuneate, margin serrulate or denticulate with 6-35 teeth per side, apex acute or acuminate. Inflorescence and flowers erect to slightly nodding. Sepals 3.5-6 mm, often keeled. Petals white, pink or rose-purple, 4.5-8(-10) mm. Stigma capitate or broadly capitate, entire. Capsules 1.5-7 cm, sparsely strigillose or rarely glabrous; pedicels 0.3-1.3 cm. Seeds brown, 0.8-1 mm, coarsely papillose, with short chalazal collar; coma dull white, readily detached. 2n = 36.

Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangxi, Jilin, Liaoning, Nei Mongol, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bhutan, India, Japan, Korea, Myanmar, Nepal, Pakistan, Russia (Far East, Kamchatka)].

Moist stream banks, wet areas along streams, roadside ditches, disturbed grassy slopes and moist areas in mountains; 600-4200 m.

Amur yağıotu (lat. Epilobium amurense) - yağıotu cinsinə aid bitki növü.

Epilobium amurense là một loài thực vật có hoa trong họ Anh thảo chiều. Loài này được Hausskn. mô tả khoa học đầu tiên năm 1879.