1	"Largest leaves 50-135 mm long; fruits +/- globose, red or orangy-red"	2
1	"Largest leaves 0.5-22 mm long; fruits ellipsoidal, green"	3
2	"Leaves 2.3-2.6 times longer than wide; mature fruits 20-25 mm long"	"Olax imbricata"
2	"Leaves 5-7 times longer than wide; mature fruits 8-11 mm long"	"Olax pendula"
3	"Largest leaves 0.5-1.5 mm long; leaves and branchlets sparsely to densely hairy; outer surface of petals hairy"	"Olax aphylla"
3	"Largest leaves 5-22 mm long; leaves and branchlets glabrous; outer surface of petals glabrous"	4
4	"Largest leaves 5-9 mm long, apex retuse to truncate; staminodes bifid"	"Olax retusa"
4	"Largest leaves 9-22 mm long, apex acute or apiculate; staminodes unbranched"	"Olax stricta"