毛脉柳叶菜(原亚种) mao mai liu ye cai (yuan ya zhong)

Epilobium amurense subsp. laetum (Wallich ex Haussknecht) P. H. Raven; E. gansuense H. Léveillé; E. laetum Wallich ex Haussknecht; E. miyabei H. Léveillé; E. nepalense Haussknecht; E. origanifolium Lamarck var. pubescens Maximowicz; E. ovale Takeda; E. tenue Komarov; E. yabei H. Léveillé.

Herbs perennial, erect, with short leafy soboles, rosettes, or rarely fleshy stolons. Stems (10-)20-50(-80) cm tall, strigillose and glandular on upper part, sparsely strigillose below with two raised densely strigillose lines decurrent from margins of petiole, or rarely stem subglabrous. Leaves subsessile or lower ones with petioles 1-4 mm; cauline blade ovate, oblong, or lanceolate, to obovate below, 2-7 × 0.5-2.5 cm, margin sharply serrulate with 6-25 teeth per side. Inflorescence strigillose with scattered glandular hairs. Sepals 3.5-5 mm, sparsely strigillose, with tufts of hairs at junctures of sepal bases. Petals 5-8(-10) mm. Fl. (May-)Jul-Aug, fr. (Jun-)Aug-Oct. 2n = 36*.

Moist stream banks, roadside ditches, disturbed grassy slopes in mountains; 1300-4200 m. Gansu, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jilin, Liaoning, Nei Mongol, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Xizang, Yunnan [Bhutan, India, Japan, Korea, Myanmar, Nepal, Pakistan, Russia (Far East, Kamchatka)].