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Populus Sect. Populus
白杨组 bai yang zu
Description from Flora of China
Sect. Leuce Duby.
Bark usually grayish white, smooth, only becoming rough on old trunks. Buds tomentose or glabrous. Leaves with petioles flattened or subterete; leaf blade lobed, incised, or with sinuous teeth, abaxially tomentose or glabrous. Bracts laciniate, long ciliate. Disc sinuate. Stamens 5-12(-20). Stigma 2-4-lobed. Capsule long ellipsoid or long ovoid, usually 2-valved.
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