Apocynaceae
Styles connate above; plants with white yellow or orange latex ( latex exudes in a globule on top of the broken stem or stalk; ordinary sap does not form a globule) (includes Asclepiadaceae) Apocynaceae Pollen granular; corona absent Climbers twiners or shrubs. Corolla white or yellow Shrubs
Leaves with spinose tips. Corolla tube less than 8 mm long Alyxia Leaves without spinose tips. Corolla tube more than 8 mm long Nerium