Salix polyadenia Handel-Mazzetti; S. polyadenia var. tschanbaischanica (Y. L. Chou & Y. L. Chang) Y. L. Chou; S. tschanbaischanica Y. L. Chou & Y. L. Chang.

Shrubs procumbent, dwarf; bark russet. Branches to 80 cm, (2-)10 mm thick; branchlets yellowish brown, pilose when young, glabrescent. Buds oblong-ovoid, 2-3 mm, glabrous. Stipules present; petiole ca. 3 mm, pilose when young, glabrescent; leaf blade obovate-elliptic, suborbicular, or elliptic, 0.5-1.7 × 0.5-1.5 cm, leathery, abaxially green, villous when young, glabrescent, adaxially dull green, base rounded or rounded-cuneate, margin entire, apex rounded, obtuse, or retuse. Flowering coetaneous. Catkins terminal. Male catkin ovoid, ca. 8 mm, 10-20-flowered; bracts yellowish brown, orbicular, ca. 1 mm, long pubescent. Male flower: glands 2, 0.3-0.4 mm, adaxial gland ovate or orbicular, sometimes 2-cleft, abaxial gland 2- or 3-parted or entire; stamens 2, distinct, glabrous. Female catkin 5-8 mm, 10-20-flowered; bracts as in male catkin. Female flower: adaxial gland usually 2- or 3(or 4)-lobed, ca. 2 × as long as stipe, abaxial gland shorter than adaxial gland; ovary sublanceolate, apex acuminate, 3-4 mm, glabrous; stipe ca. 1 mm,

elongated in fruit; style ca. 0.5 mm; stigma 4-lobed. Fl. Jul, fr. Jul.

The Chinese record in FRPS of the the NW North American species Salix rotundifolia Trautvetter is referable to S. nummularia.

The Chinese record in FRPS of the the NW North American species Salix rotundifolia Trautvetter is referable to S. nummularia.

Alpine tundra; 2200-2600 m. Jilin (Changbai Shan) [Russia].