1	"Leaves palmate, divided into 3-9 leaflets"	Cannabis
1	"Leaves simple"	2
2	"Leaf margins with 4-8 pairs of spiny teeth"	Aphananthe
2	"Leaf margins entire or with 8-70 pairs of serrate or crenate teeth, never spiny"	3
3	"Leaf margin with 30-70 pairs of teeth; fruits 2.5-4 mm long"	Trema
3	"Leaf margin entire or with 8-19 pairs of teeth; fruits 6-15 mm long"	Celtis