Epilobium sinense Leveille

Herbs perennial, robust, clumped with short leafy basal soboles. Stems 10-50 cm tall, simple or few-branched, very densely leafy, glabrescent throughout except for raised strigillose lines decurrent from margins of petioles. Leaves often spirally arranged on upper stem, crowded, subleathery; petiole 2-11 mm; cauline blade narrowly spatulate to oblong or lanceolate-linear, or rarely narrowly obovate, 1.2-7 cm × 3-10 mm, glabrous with sparsely strigillose margin and midvein, midvein conspicuously pale, prominent abaxially, base narrowly cuneate, margin weakly denticulate with 3-12 teeth per side, apex obtuse. Inflorescence and flowers erect. Sepals 4.5-6.5 mm. Petals white or pink, rarely rose-purple, 5.5-8 mm. Stigma capitate or broadly clavate, entire. Capsules 2.5-5.5 cm, glabrescent or sparsely strigillose; pedicels 1.3-4 cm. Seeds brown, 1.2-1.3 mm, finely papillose, with inconspicuous chalazal collar; coma reddish, detaching easily. Fl. Jun-Sep, fr. Aug-Oct(-Dec). 2n = 36*.

Gansu, Guizhou, Henan, Hubei, Hunan, Sichuan, Yunnan.

● Moist places along rivers and streams, occasionally in other rocky, exposed places; 500-2400 m.