China Flora: Tree, up to 30 meters high; bark is gray-brown, flaking off. Young branches densely covered with yellow resin glands, sparsely covered with soft hairs. Leaves are ovate or ovate-elliptic, 3.5-7 cm long, with acuminate or caudal tips, rounded or nearly cordate base, glabrous above, densely covered with resin glands and long soft hairs below, with irregular fine and sharp double serrations, 9-16 pairs of lateral veins; petiole 0.8-2 cm long. Female inflorescence solitary, oblong, 1.5-2.5 cm long, about 1 cm in diameter, peduncle 2-5 mm long, sparsely covered with long soft hairs and resin glands; bracts 5-8 mm long, glabrous, middle lobe oblong-lanceolate, lateral lobes oblong, spreading, as long as 1/3 of the middle lobe. Nutlets are obovate, about 2 mm long, glabrous, and the membranous wings are 1/2 the width of the fruit. Fruiting period is August-September.

It is produced in Heilongjiang, Jilin, Liaoning, Inner Mongolia and Hebei, and grows in mixed coniferous and broad-leaved forests at an altitude of 600-2500 meters. It is also distributed in North Korea and Ussuri, Russia. The wood is used for pillars, boards, plywood, etc. 

[translated from Higher Plants of China]