1 |
Leaf blade 3-lobed, margin undulate; lobes obtuse. |
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1 A. miaotaiense |
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Leaf blade 3-, 5-, or 7-lobed, or unlobed, margin entire or rarely dentate; middle lobes usually acute or acuminate |
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(2) |
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2 (1) |
Shoots gray or brownish yellow |
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(3) |
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Shoots green or purple-green |
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(6) |
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3 (2) |
Leaf blade 4-6 × 3-6 cm, usually 3-lobed, rarely undivided, suborbicular or ovate, base rounded or subcordate, margin entire or slightly sinuate, apex obtuse or acute, abaxially glabrous except slightly pubescent at vein axil. |
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9 A. tenellum |
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Leaf blade 7-13 × 5-20 cm, usually 3- or 7-lobed, base truncate or obtuse, apex acuminate, abaxially densely pubescent or glabrous |
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(4) |
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4 (3) |
Leaves abaxially densely pubescent, usually 3-lobed, or unlobed when young. |
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10 A. fulvescens |
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Leaves abaxially glabrous, usually 5-lobed, sometimes 3- or 7-lobed |
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(5) |
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5 (4) |
Nutlets convex and thick; leaf base usually truncate, lobes sometimes dentate. |
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11 A. truncatum |
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Nutlets flat and thin; leaf base rounded or cordate, lobes entire. |
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12 A. pictum |
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6 (2) |
Nutlets slightly convex |
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(7) |
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Nutlets flat, thin |
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(9) |
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7 (6) |
Leaf blade 3- or 5-lobed. |
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6 A. shenkanense |
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Leaf blade 5- or 7-lobed |
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(8) |
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8 (7) |
Wing including nutlet 2-5 cm × 5-9 mm; leaves abaxially glabrous or slightly pubescent, base truncate or cordate. |
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7 A. cappadocicum |
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Wing including nutlet 3.5-4 cm × ca. 12 mm; leaves abaxially densely yellow-gray tomentose, base rounded. |
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8 A. tibetense |
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9 (6) |
Leaves glabrous |
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(10) |
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Leaves abaxially pubescent |
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(11) |
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10 (9) |
Leaf blade unlobed or 3-lobed, 4-11 × 2.5-4(-8) cm, apex caudate-acuminate; nutlet including wing ca. 2.5 cm. |
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2 A. chunii |
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Leaf blade 3- or 5-lobed, rarely unlobed, 10-20 × 4-26 cm, apex usually obtuse or acute; nutlet including wing (2.5-)3-4.5 cm. |
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3 A. amplum |
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11 (9) |
Leaf blade usually 3-lobed or unlobed when young, base rounded or slightly cordate; nutlets conspicuously veined. |
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4 A. longipes |
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Leaf blade usually 5- or 7-lobed, base truncate or cordate; nutlets not veined. |
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5 A. acutum |
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