1	"Petals 20–30 mm long; long, abaxial, staminal filaments not expanded, not nodose near the mid-point"	"Cassia fistula"
1	"Petals 5–20 mm long; long, abaxial, staminal filaments expanded, nodose near the mid-point"	2
2	"Flowers 50–80 per raceme; petals 15–20 mm long"	"Cassia queenslandica"
2	"Flowers 10–50 per raceme; petals 5–15 mm long"	"Cassia brewsteri"