Trees to 30 m tall. Branches grayish brown; branchlets tomentose. Buds ovoid, smooth, viscid. Petiole terete, ca. 4 cm, densely pubescent; leaf blade broadly ovate-cordate, ca. 10 × 8 cm, abaxially glaucous, with dense hairs, adaxially dull green, pilose along veins, base cordate, margin glandular serrulate, ciliate when young, apex acute. Fruiting catkin to 15 cm; rachis pubescent; bracts russet, suborbicular, laciniate. Disc sinuolate. Capsule ovoid, densely tomentose when young, glabrescent, 4-valved, subsessile. Fl. May, fr. Jul.
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