青甘杨 qing gan yang

Populus simonii Carriere var. griseoalba T. Y. Sun; P. simonii var. ovata T. Y. Sun; P. simonii f. przewalskii (Maximowicz) Rehder; P. suaveolens Fischer var. przewalskii (Maximowicz) C. K. Schneider.

Trees to 20 m tall; trunk straight; bark grayish white, smooth, furrowed near base. Petiole 2-2.5 cm, pilose; leaf blade rhombic-ovate, 4.5-7 × 2-3.5 cm, abaxially glaucescent, adaxially green, base cuneate, margin serrulate, entire near base, apex shortly acuminate; veins pilose on both surfaces. Male catkin slender, ca. 4.5 cm; rachis pilose. Disc slightly sinuolate-nicked. Female flower: ovary ovoid, tomentose; stigma 2-lobed, each lobe forked. Capsule ovoid, pubescent, 2-valved.

* Gansu, Nei Mongol, Qinghai, Sichuan