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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
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.
Lower Taxa
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