光滑柳叶菜 guang hua liu ye cai

Epilobium cephalostigma Haussknecht, Oesterr. Bot. Z. 29: 57. 1879; E. angulatum Komarov; E. calycinum Haussk necht; E. cephalostigma Haussknecht var. nudicarpum (Komarov) H. Hara; E. consimile Haussknecht var. japonicum Nakai; E. coreanum H. Léveillé; E. cylindrostigma Komarov; E. nudicarpum Komarov; E. sugaharae Koidzumi.

Herbs perennial, erect, with leafy basal soboles. Stems 25-150 cm tall, usually well-branched, strigillose on upper part, lacking any glandular hairs, with two faint strigillose lines decurrent from margins of petioles, or rarely subglabrous. Leaves subsessile or lower ones with petioles 1-6 mm; cauline blade oblong-lanceolate to narrowly ovate or rarely narrowly rhombic, 3-9.5 × 0.8-2.5 cm, margin sharply denticulate with 13-35 teeth per side. Inflorescence strigillose or very rarely subglabrous. Sepals 3.8-6 mm, sparsely and evenly strigillose or rarely subglabrous. Petals 4.5-7 mm. Fl. Jun-Sep, fr. Aug-Oct. 2n = 36.

Wet areas along streams, roadside ditches at low elevations or in mountains in south; 600-2100 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangxi, Jilin, Liaoning, Shaanxi, Shandong, Sichuan, Yunnan, Zhejiang [Japan, Korea, Russia (Far East)].