1 |
Leaves simple, undivided or 3-5-divided, but not deeply so to base |
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(2) |
+ |
Leaves palmately or pinnately compound |
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(13) |
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2 (1) |
Branchlets, petioles, and leaf blade glabrous or abaxially with tufts of hairs limited to vein axils |
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(3) |
+ |
Branchlets, petioles, and leaf blade abaxially pubescent with soft hairs or villous |
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(7) |
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3 (2) |
Leaves conspicuously 3-5-divided |
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(4) |
+ |
Leaves undivided or slightly 3-5-cleft |
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(5) |
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4 (3) |
Leaves with 3-5 broad lobes (lobed up to middle), notch obtuse or acute. |
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6 A. humulifolia |
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Leaves with 3-5 deep lobes, notch rounded. |
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7 A. acerifolia |
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5 (3) |
Leaf margin irregularly toothed, usually with large, elliptic, triangular, or narrowly triangular teeth (to 1 cm). |
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3 A. acutidentata |
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Leaf margin with shallow, broadly triangular teeth |
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(6) |
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6 (5) |
Leaf abaxially pale green, upper two lobes short or inconspicuous. |
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1 A. bodinieri |
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Leaf abaxially green, upper two lobes triangular, conspicuous, and slightly extending outward. |
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2 A. glandulosa |
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7 (2) |
Leaves 3-5-divided, lobed conspicuously to middle, rarely only slightly lobed or undivided |
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(8) |
+ |
Leaves undivided or slightly 3-5-cleft |
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(10) |
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8 (7) |
Pedicels usually 1-1.5 mm, rarely to 2 mm. |
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2 A. glandulosa |
+ |
Pedicels 2-3 mm |
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(9) |
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9 (8) |
Leaves elliptic-ovate, usually 5-divided, abaxially with dense grayish hairs. |
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1 A. bodinieri |
+ |
Leaves elliptical-pentangular or cordate-pentangular, usually 3-divided with lobes to middle, abaxially with short hairs. |
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6 A. humulifolia |
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10 (7) |
Leaves pentangular-ovate or cordate, 3-5-lobed, margin with large, sharp teeth. |
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2 A. glandulosa |
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Leaves ovate or cordate, margin with rounded teeth |
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(11) |
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11 (10) |
Blades undivided, base conspicuously cordate, margin with regular teeth, both surfaces pubescent. |
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2 A. glandulosa |
+ |
Blades slightly 3-5-divided, margin with irregular teeth |
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(12) |
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12 (11) |
Upper part of leaves irregularly divided, leaves with dense grayish appressed hairs. |
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4 A. mollifolia |
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Upper part of leaves conspicuously 3-lobed, leaves densely scabrous. |
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5 A. tomentosa |
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13 (1) |
Leaves 3-7-palmate |
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(14) |
+ |
Leaves pinnate to bipinnate |
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(17) |
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14 (13) |
Branchlets, petioles, or leaf blade abaxially sparsely pubescent; leaves 3- or 5-foliolate |
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(15) |
+ |
Branchlets, petioles, and leaf blade abaxially glabrous; leaves 3-5-foliolate |
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(16) |
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15 (14) |
Leaves 3-foliolate, leaflets undivided, or only base of lateral leaflets divided. |
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8 A. delavayana |
+ |
Leaves 5-foliolate, leaflets pinnatifidly divided, or margin with coarse teeth. |
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9 A. aconitifolia |
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16 (14) |
Leaflets pinnatipartite, lower half attenuate into wings. |
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10 A. japonica |
+ |
Leaflets toothed or lobed at margin, not pinnatipartite. |
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8 A. delavayana |
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17 (13) |
Branchlets, petioles, and inflorescences glabrous |
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(18) |
+ |
Branchlets, petioles, and inflorescence rachises pubescent |
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(21) |
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18 (17) |
Leaves green on both surfaces, leaflet margin with large, conspicuous teeth |
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(19) |
+ |
Leaves abaxially strongly glaucous, leaflet margin entire or with fine teeth |
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(20) |
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19 (18) |
Tendril trifurcate; leaflets 4-12 × 2-6 cm. |
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11 A. megalophylla |
+ |
Tendril bifurcate; leaflets 2-5 × 1-2.5 cm. |
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17 A. grossedentata |
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20 (18) |
Leaflets 2 or 3 pairs, blades 7-15 × 3-7 cm. |
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14 A. chaffanjonii |
+ |
Leaflets usually 4-6 pairs, blades 2.5-6 × 1-3.5 cm. |
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16 A. hypoglauca |
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21 (17) |
Branchlets, petioles, and inflorescence rachises pubescent with short gray hairs; branchlets terete |
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(22) |
+ |
Branchlets, petioles, rachises, pedicels, and leaflets abaxially ferruginous pilose; branchlets conspicuously 4-6-ridged |
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(23) |
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22 (21) |
Dried leaflets light green, margin coarsely toothed, central leaflet ovate-elliptic. |
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11 A. megalophylla |
+ |
Dried leaflets abaxially yellowish brown, margin ± undulate, central leaflet obovate or ovate. |
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13 A. cantoniensis |
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23 (21) |
Leaflets 3.5-14 × 2-6.5 cm, margin 5-15-toothed, abaxially densely ferruginous pilose; berries 8-15 mm in diam. |
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12 A. rubifolia |
+ |
Leaflets 3-6 × 0.5-3 cm, margin entire or with 1 to several inconspicuous teeth, midvein abaxially sparsely pilose; berries 5-7 mm in diam. |
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15 A. gongshanensis |
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