细穗柳 xi sui liu

Salix albertii Regel; S. serrulatifolia E. L. Wolf.

Shrubs to 4 m tall; bark gray. Branchlets yellowish, at first appressed pubescent, glabrescent. Buds yellowish or brownish, ovoid, glabrous, apex acute. Stipules ovate-lanceolate, usually caducous; petiole 2-5 mm, tomentulose; leaf blade oblanceolate, oblong-spatulate, or linear-lanceolate, 5-10 × 0.7-1.5 cm, abaxially grayish white or grayish green, slightly shortly silky when young, when mature glabrous or rarely silky tomentose, adaxially greenish, base cuneate or broadly cuneate, margin densely glandular denticulate, apex shortly acuminate; veins conspicuous. Flowering nearly coetaneous. Male catkin unknown. Female catkin thinly terete, 2.5-3.5 cm × 3-5 mm; peduncle 5-10 mm; bracts brownish, elliptic, long white pubescent at base, abaxially pilose at apex. Female flower: ovary ovoid, shorter than gland, sessile or shortly stipitate; style shorter than gland, subsessile; stigma blackish brown, short, 2-parted. Fl. May, fr. Jun.

Along rivers in mountains; 1200-1500 m. W Xinjiang [Kazakhstan, Kyrgyzstan, Mongolia]