The height of the arbor is 20 (25) meters and the diameter at breast height is 1 meter. The crown is open; the bark is dark gray and deeply divided; the young branches have silvery white down, and the old branches are glabrous and light brown. The buds are adnate, 6 mm long and 1.5 mm wide, acutely pointed. Leaf lanceolate, linear-lanceolate, broad-lanceolate, oblanceolate or obovate-lanceolate, 5-12 (15) cm long, 1-3 (3.5) cm wide, apex acuminate or Long tapering, wedge-shaped at the base, silvery white silky hairs on both sides of the young leaves, often glabrous on the top of the adult leaves, slightly fluffy or nearly glabrous on the bottom, 12-15 pairs of lateral veins, spreading out at a 30-45 degree angle, with thin edges Serrated; petiole is 0.2-1 cm long with white silky hairs; stipules are lanceolate, with vellus hairs, glandular spots on the edges, and early shedding.

Inflorescences open at the same time as leaves, stalked, stalk length 5-8 mm, oblong obovate leaflets at the base, dense white hairs on the axis; male inflorescences are 3-5 cm long, anthers are bright yellow, sparse, stamens 2 free, filament Hairy at the base; bracts ovate-lanceolate, or obovate-oblong, light yellow, whole, glabrous on the inside, nearly glabrous on the outside or sparsely hairy at the base, with ciliate; gland 2, dorsal and dorsal Abdominal; female inflorescence is 3-4.5 cm long, flowers are sparse, ovary ovate-conical, 4.5-5 mm long, short stalked or subsessile, glabrous, short style, often 2-lobed, stigma 2-lobed Bracts are lanceolate, or egg-lanceolate, whole, light yellow, with white wool on the inside, white wool on the outside only at the base, with ciliate hairs, early shedding; gland 1, abdomen, rare Well-developed dorsal glands. Infructescence is 3-5.5 cm long. Flowering period from April to May, fruit period in May.