1	"Plants shrubs up to 3 m tall; corollas 40-50 mm long"	"Asystasia excellens"
1	"Plants herbs, ascending to erect or scrambling; corollas up to 25 mm long"	2
2	"Flowers in lax spikes with inconspicuous bracts"	"Asystasia gangetica"
2	"Flowers in dense, bracteate spikes"	3
3	"Corollas creamy white with green spots, up to 25 mm long"	"Asystasia guttata"
3	"Corollas white to purplish, up to 15 mm long"	"Asystasia riparia"