钻天柳 zuan tian liu

Salix arbutifolia Pallas, Fl. Ross. 1(2): 79. 1788; Chosenia bracteosa (Turczaninow ex Trautvetter) Nakai; C. eucalyptoides (Meyer ex. C. K. Schneider) Nakai; C. macrolepis (Turczaninow) Komarov; C. splendida (Nakai) Nakai; S. bracteosa Turczaninow ex Trautvetter; S. eucalyptoides Meyer ex. C. K. Schneider; S. macrolepis Turczaninow.

Trees to 30 m tall; trunk to 1 m d.b.h.; bark brownish gray; crown columnar. Branchlets slightly reddish yellow or purplish red, glabrous, pruinose. Buds flattened ovoid, shiny. Leaves

petiolate; leaf blade oblong-lanceolate to lanceolate, 5-8 × 1.5-2.3 cm, both surfaces glabrous, grayish green, abaxially often pruinose, base cuneate, margin serrulate or subentire, apex acuminate. Male catkin pendulous, 1(-3) cm; rachis glabrous; bracts obovate, abaxially glabrous, margin villous, persistent. Male flower: stamens 5; anthers yellow, globose. Female catkin 1-2.5 cm; rachis glabrous; bracts obovate-elliptic, abaxially glabrous, margin villous, caducous. Female flower: gland absent, sometimes with 1 or 2 reduced glanduoles; ovary subovoid-cylindric, shortly stipitate; styles gradually caducous after anthesis. Fl. May, fr. Jun. 2n = 38.

Along streams; 300-1000 m. Hebei, Heilongjiang, Jilin, Liaoning, E Nei Mongol [Japan, Korea, Russia (Far East)].