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2. Populus Sect. Leucoides Spach, Ann. Sci. Nat., Bot., sér. 2. 15: 30. 1841.
大叶杨组 da ye yang zu
Description from Flora of China
Bark exfoliating, rough. Buds conical, slightly viscid, smooth. Leaves of short branchlets and long shoots with petiole terete or slightly compressed distally; leaf blade suborbicular, base cordate or deeply cordate. Disc parted or sinuate, persistent. Male flower: stamens 12-40; anthers long elliptic, apex apiculate. Female flower: ovary downy (or glabrous); style elongate; stigma 2- or 3-lobed. Capsule pilose, 2- or 3(or 4)-valved.
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