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FOC | Family List | FOC Vol. 13 | Onagraceae | Chamerion

4b. Chamerion angustifolium subsp. circumvagum (Mosquin) Hoch, Fl. Japan. 2c: 241. 1999.

毛脉柳兰 mao mai liu lan

Epilobium angustifolium subsp. circumvagum Mosquin, Brittonia 18: 167. 1966; Chamaenerion angustifolium subsp. circumvagum (Mosquin) Moldenke; C. angustifolium var. platyphyllum Daniels.

Stems 30-200 cm tall, glabrous below, sparsely strigillose throughout upper stem and inflorescence. Leaves with petioles 2-7 mm; cauline blade oblong- or elliptic-lanceolate, (6-)9-23 × (0.7-)1.5-3.4 cm, sparsely strigillose adaxially, with strigillose leaf midvein especially abaxially, lateral and submarginal veins distinct, base subcuneate to attenuate, margin ± denticulate, flat or scarcely revolute. Inflorescence strigillose. Sepals 9-19 mm. Petals 14-25 × 7-15 mm. Capsules 5-9.5 cm; pedicels 1-3 cm. Seeds 1-1.3 mm. Fl. Jul-Sep, fr. Aug-Oct. 2n = 72, 108*.

Moist often disturbed places in mountains; near sea level to 3600(-4400) m. Gansu, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Xizang, Yunnan [Afghanistan, Bhutan, India, Japan, Korea, Myanmar, Nepal, Pakistan, Russia; N Africa, C, N, and SW Asia, Europe, North America].


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