1	"Fruit papery; bark smooth with persistent tessellated stocking on lower trunk."	"Corymbia tessellaris"
1	"Fruit woody; bark smooth or persistent on all of trunk."	2
2	"Bark smooth on trunk (spotted gums)."	3
2	"Bark persistent and tessellated on trunk (bloodwoods)."	5
3	"Fruit >11 mm diam."	"Corymbia henryi"
3	"Fruit <11 mm diam."	4
4	"Adult leaves with length:breadth ratio mostly 2–7:1; juvenile leaves ovate; south of Port Macquarie."	"Corymbia maculata"
4	"Adult leaves with length:breadth ratio mostly 5–15:1; juvenile leaves narrow-lanceolate; north from Coffs Harbour."	"Corymbia variegata"
5	"Fruit 5–8 mm diam."	"Corymbia trachyphloia"
5	"Fruit 8–19 mm diam."	6
6	"Adult leaves concolorous."	7
6	"Adult leaves discolorous."	8
7	"Outer calyptra persistent; buds pedicellate."	"Corymbia tumescens"
7	"Outer calyptra shed early; buds sessile."	"Corymbia eximia"
8	"Bark flaking off on smaller branches; seeds not winged."	"Corymbia gummifera"
8	"Bark fully persistent on smaller branches; seeds winged."	9
9	"Adult leaves broad-lanceolate or ovate."	"Corymbia intermedia"
9	"Adult leaves lanceolate"	"Corymbia dolichocarpa"