Plants to 20 m, 7 dm diam.; moderately heterophyllous. Bark light brown, shallowly furrowed. Branchlets orange-brown, becoming whitish tan by third year, round or 5-angled, 1.5-2.5(-3.5) mm diam., not coarse, glabrous. Winter buds reddish brown, glabrous, resinous (resin red, fragrant); terminal buds (3-)6-9 (-13) mm; flowering buds clustered distally on branchlets, 8-12(-18) mm. Leaves: petiole round, adaxially slightly channeled distally, 0.2-0.8(-1.7) cm, 1/8-1/5 blade length, (glabrous); blade usually lanceolate to narrowly ovate, (1.5-)4-8(-13.5) × 0.8-2.5(-4) cm, w/l = 1/5-1/2, base acute to rounded, basilaminar glands 0, margins not translucent, not ciliate, apex acute, abaxial surface whitish green, weakly glaucous, adaxial dark green, glabrous; preformed blade margins subentire to minutely, evenly crenate-serrate throughout, teeth (14-)23-35(-65) on each side, sinuses 0.1-0.3 mm deep; neoformed blade margins finely crenate-serrate throughout, teeth 35-65(-80) on each side, sinuses 0.1-0.6(-1.5) mm deep. Catkins ± densely 35-50-flowered, 3-8(-9 in fruit) cm; floral bract apex deeply cut, not ciliate. Pedicels 0.5-1.5(-3 in fruit) mm. Flowers: discs shallowly cup-shaped, not obviously oblique, entire , 1-1.5(-3) mm diam.; stamens 10-20; anthers truncate; ovary 2-carpelled, ovoid to spherical; stigmas 2-4, broad, expanded. Capsules broadly ovoid to spherical, 3-5 mm, glabrous, 2-valved. Seeds (2-) 4-7(-9) per placenta. 2n = 38.
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A small tree. It grows to 15 m high. The trunk can be 30 cm across. The leaves are 5-9 cm long. There are fine teeth along the edge.
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