| 1 | Apex of leaflets rounded, obtuse, or acuminate |
| 1' | Apex of leaflets acute, subcaudate or acuminate-mucronulate |
| 2 | Inflorescence, young branches and leaf-rachises subglabrous to densely tomentose |
| 2' | Inflorescence, young branches and leaf-rachises velutinous to hirsute |
| 3 | Young parts of plants subglabrous or short-tomentose. Australia (Queensland, N New South Wales) |
| 3' | Young parts densely rusty tomentose |
