1 |
Stamens not less than 10; leaf blade broadly ovate to cordate or orbicular, membranous to subleathery |
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(2) |
+ |
Stamens not more than 10; leaf blade ovate or orbicular, rarely linear-lanceolate, papery, rarely leathery |
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(4) |
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2 (1) |
Leaf blade broadly ovate to ovate, sometimes obovate. |
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8 A. premnifolium |
+ |
Leaf blade oblong, cordate, or orbicular |
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(3) |
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3 (2) |
Leaf blade oblong. |
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10 A. salviifolium |
+ |
Leaf blade cordate or orbicular. |
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7 A. platanifolium var. trilobum |
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4 (1) |
Flowers small, petals usually shorter than 1 cm |
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(5) |
+ |
Flowers large, petals ca. 1 cm or longer |
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(7) |
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5 (4) |
Leaf blade suborbicular; styles pubescent. |
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11 A. yunnanense |
+ |
Leaf blade oblong or broadly elliptic; styles glabrous |
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(6) |
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6 (5) |
Leaf blade oblong or lanceolate, pubescent when young, glabrescent; anthers basally pubescent. |
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4 A. faberi |
+ |
Leaf blade broadly elliptic or ovate-oblong, both surfaces pubescent; anthers inside with soft hairs |
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2 A. barbatum |
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7 (4) |
Connectives of stamens glabrous |
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(8) |
+ |
Connectives of stamens pubescent |
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(9) |
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8 (7) |
Inflorescences 7-30(-50)-flowered, petals lanceolate, 1-1.5 cm; leaf blade suborbicular, elliptic, or ovate, petiole 4-6 cm; drupe ovoid, 5-7 mm. |
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3 A. chinense |
+ |
Inflorescences 1-5-flowered, petals linear, 1.8-2.3 cm; leaf blade ovate or suborbicular, petiole 1-4 cm; drupe ellipsoid, 1.3-2 cm. |
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1 A. alpinum |
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9 (7) |
Climbing shrub; petals 5; inflorescences 5-12-flowered; leaf blade oblong. |
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6 A. kwangsiense |
+ |
Erect small tree or shrub; petals 6-10; inflorescences 2-7-flowered; leaf blade ovate to broadly ovate or suborbicular |
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(10) |
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10 (9) |
Leaf blade suborbicular or broadly ovate, 12-14 × 7-9 cm, petiole 2.5-4 cm; inflorescences 5-7-flowered, petals 6-8(-10), 2-2.5 cm. |
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5 A. kurzii |
+ |
Leaf blade narrowly to broadly ovate, 4-7 × 2.7-4 cm, petiole 1-1.6 cm; inflorescences 2- or 3-flowered, petals 7, ca. 1 cm. |
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9 A. qingchuanense |
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