1	"Petals absent"	2
1	"Petals 4"	3
2	"Leaves and petioles glandular-pubescent; petioles 2-8 mm long; fruits ellipsoid"	"Cadaba glandulosa"
2	"Leaves and petioles puberulous or glabrescent, not glandular; petioles 10-20 mm long; fruits cylindrical"	"Cadaba rotundifolia"
3	"Stamens 5"	4
3	"Stamens 4"	7
4	"Leaves covered with stellate scales"	"Cadaba heterotricha"
4	"Leaves not as above"	5
5	"Nectarial appendages petaloid, with an orange-yellow limb"	"Cadaba mirabilis"
5	"Nectarial appendages not petaloid"	6
6	"Leaves and petioles covered with glandular hairs; petals 1.6-2.4 cm long; androphore 1.2-1.4 cm long"	"Cadaba somalensis"
6	"Leaves and petioles covered with sessile scales; petals 1-1.2 cm long; androphore 0.7-0.9 cm long"	"Cadaba farinosa"
7	"Young twigs glabrous or farinose"	8
7	"Young twigs pubescent"	9
8	"Leaf blades 20-70 mm long, 4-14 mm wide; petioles 2-10 mm long; styles 0.2-0.4 mm long"	"Cadaba longifolia"
8	"Leaf blades 8-22 mm long, 1.5-5 mm wide; petioles 0.8-1.5 mm long; styles about 1 mm long"	"Cadaba baccarinii"
9	"Pedicels 1.2(-1.5) cm long"	"Cadaba ruspoli"
9	"Pedicels more than 1.5 cm long"	10
10	"Petioles 2-3 mm long; pedicels 2.2-3.7 cm long"	"Cadaba barbigera"
10	"Petioles up to 1 mm long; pedicels up to about 2 mm long"	"Cadaba divaricata"