柳兰(原亚种) liu lan (yuan ya zhong)

Epilobium angustifolium Linnaeus, Sp. Pl. 1: 347. 1753; Chamaenerion angustifolium (Linnaeus) Scopoli; C. angustifolium var. album Yue Zhang & J. Y. Ma; E. neriifolium H. Léveillé; E. spicatum Lamarck.

Stems 20-130 cm tall, subglabrous. Leaves subsessile; cauline blade linear-lanceolate or narrowly lanceolate, (3-)7-14(-18.5) × (0.3-)0.7-1.3(-2.5) cm, glabrous throughout, lateral veins often indistinct but submarginal vein distinct, base obtuse to cuneate, margin subentire to obscurely denticulate, somewhat revolute. Inflorescence subglabrous. Sepals 6-15 mm. Petals 9-15(-19) × 3-9(-11) mm. Capsules 4-8 cm; pedicels 0.5-1.9 cm. Seeds 0.9-1 mm. Fl. Jul-Sep, fr. Aug-Oct. 2n = 36*.

Moist often disturbed places in mountains, 500-4700 m. Gansu, Hebei, Heilongjiang, Jilin, Nei Mongol, Ningxia, Qinghai, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan [Afghanistan, Bhutan, India, Japan, Korea, Myanmar, Nepal, Pakistan, Russia; C, N, and SW Asia, Europe, North America].