长柱柳 chang zhu liu

Salix dolichostyla Seemen; S. mixta Korshinsky.

Shrubs or trees to 20 m tall; trunk to 60 cm d.b.h.; bark grayish black, furrowed. Branchlets yellowish gray or yellowish brown, glabrous, villous when young. Buds oblong, glabrous or slightly pilose. Petiole 5-10 mm; leaf blade oblanceolate or oblong-lanceolate, broadest above middle, 6.5-9 × 1-1.7 cm, abaxially bluish green, long pubescent along midvein, adaxially green, base cuneate, margin sharply serrate, apex long acuminate. Male catkin 2-4 cm × ca. 5 mm, sessile; bracts ovate-elliptic, 1/3-1/2 as long as filament, yellowish pubescent, rarely glabrescent distally, apex obtuse or retuse. Male flower: glands adaxial and abaxial; stamens 2; filaments distinct or semiconnate proximally, long yellow pubescent basally; anthers red. Female catkin 1.5-2 cm × ca. 5 mm; peduncle with 2 or 3 oblanceolate leaflets; bracts oblong ovate, pilose at base, apex rounded, obtuse, or retuse. Female flower: glands 2, adaxial and abaxial; ovary ovoid, pilose; style ca. 2/3 as long as ovary; stigma long, 2-cleft. Fl. May, fr. Jun.

Along rivers; near sea level to 600 m. Heilongjiang, Jilin, Liaoning [Japan, Korea, Russia]

A. K. Skvortsov believes that this species is synonymous with Salix pierotii.

Planted to protect embankments, for reforestation, and for timber.