Populus girinensis Skvortsov

According to B. V. Skvortzov (Not. Trees & Shrubs 10: 337. 1929), this is a hybrid that originated in Harbin, Heilongjiang around 1910.

Trees to 12 m tall; trunk to 45 cm d.b.h.; bark furrowed; crown long ovoid. Branchlets terete, pubescent. Buds viscid, pilose or glabrous. Petiole 3-4 cm, pubescent; leaf blade broadly ovate or long ovate, 6.5-9 × 2.8-6 cm, abaxially shiny, ± pilose along veins, adaxially dull green, pubescent along veins, base subcordate or cuneate, margin slightly crenate-serrate, apex shortly acuminate. Female catkin 10-14 cm; rachis glabrous. Capsule oblong, ca. 11 × 7 mm, glabrous, 3-valved, sessile. Fl. Apr, fr. May.

* Heilongjiang, Jilin