KEY TO THE SUBSPECIES

1	Rachis and pinnae with a few scattered hairs or sparsely puberulous; leaflets drying green or greenish above. Calyx glabrous to appressed puberulous Albizia retusa subsp. retusa
1'	Rachis and pinnae densely short-pubescent, glabrescent; leaflets drying lead-grey above. Calyx patently puberulous. Albizia retusa subsp. morobei