3. Chamerion conspersum (Haussknecht) Holub, Folia Geobot. Phytotax. 7: 86. 1972.
网脉柳兰 wang mai liu lan
Epilobium conspersum Haussknecht, Oesterr. Bot. Z. 29: 51. 1879; Chamaenerion conspersum (Haussknecht) Kitamura; C. reticulatum (C. B. Clarke) Kitamura; E. reticulatum C. B. Clarke.
Herbs perennial, robust, with a somewhat woody rhizome. Stems 30-120 cm tall, densely strigillose throughout. Leaves sessile or petioles to 3 mm; basal leaf blade narrowly triangular to narrowly lanceolate, 8-10 mm; cauline blade pale green abaxially, dark green adaxially, narrowly oblong or elliptic-lanceolate, 4.5-11 × 0.7-1.4 cm, both surfaces strigillose, lateral veins distinct, 4 or 5 per side, secondary veins conspicuous, anastomosing, base cuneate, margin often revolute, denticulate with 15-35 teeth per side, apex acuminate. Bracts somewhat less than 1/2 as long as cauline leaves. Inflorescence densely strigillose. Flowers suberect in bud, nodding at early anthesis. Sepals 1.1-1.5 cm × 3-5 mm. Petals rose-purple, 8-14 × 6-13 mm. Ovary purplish green, 1-2 cm, densely canescent; style 5-8 mm, lower half densely villous. Capsules 2.5-7.5 cm, strigillose; pedicels 1.5-5 cm. Seeds 1-1.2 × 0.4-0.5 mm, low papillose to reticulate, with distinct chalazal collar 0.08-0.1 mm; coma tawny, 1-1.2 cm, not readily deciduous. Fl. Jul-Sep, fr. Sep-Oct. 2n = 36.
Open, moist gravel beds, sandy streambeds, talus ridges; 2300-4700 m. Qinghai, Shaanxi, Sichuan, Xizang, Yunnan [Bhutan, NE India (Sikkim), Myanmar, Nepal].
Some morphologically intermediate populations appear to be hy brids between this species and Chamerion angustifolium or C. specio sum in areas where these species overlap. More analyses are needed to verify these observations.