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1 Leaves unifoliolate (or palmately 3-foliolate); leaflets orbicular or obovate; plant a sprawling and spreading shrub/vine |
| 1 Leaves palmately (3-) 5-7-(-9) foliolate; leaflets lanceolate; plant an upright small tree. |
| ..2 Leaves (1-) 3 (-5)-foliolate, gray-white tomentose below |
| ..2 Leaves 3-7-foliolate, short-pubescent below. |
| ....3 Leaves (3-) 5-9-foliolate; fruits 2-3 mm in diameter; leaflet margins entire; inflorescence axes straight and stiff |
| ....3 Leaves 3-7-foliolate; fruits 3-5 mm in diameter; leaflet margins either entire or coarsely toothed; inflorescence axes lax and often curved |