1	"Young stems with laciniate or irregularly divided, warty margins to the angles. Leaf margins crenulate or conspicuously irregular"	2
1	"Young stems with smooth to crenulate or warty margins to the angles. Leaf margins entire"	3
2	"Young stems with laciniate wings. Leaves 4–6 mm long, crenulate. (Mt Buffalo NP area, Vic.)"	"Sannantha crenulata"
2	"Young stems with irregular warty margins. Leaves 1.2–2.5 mm long, conspicuously irregular. (Pilliga State Forest–Cowra, N.S.W.)"	"Sannantha cunninghamii"
3	"Leaves 0.5–1.5 mm wide"	4
3	"Leaves 1.3–6 mm wide, mostly more than 1.5 mm wide"	6
4	"Leaves 2.7–4 mm long. Stamens 5–8. Ovules 11–15 per loculus. (Goonoowigall, N.S.W.)"	"Sannantha whitei"
4	"Leaves 5.5–15.5 mm long. Stamens 8–13. Ovules 16–20 per loculus"	5
5	"Leaves plano-convex to concavo-convex, 5.5–15.5 mm long, 0.5–1 mm wide. (Atherton–Townsville, Qld)"	"Sannantha angusta"
5	"Leaves flat, 9–15 mm long, 1.1–1.5 mm wide. (Brisbane area, Qld–near Newcastle, N.S.W.)"	"Sannantha similis"
6	"Young branchlets usually with undulating surfaces and crenate margins. Leaf midrib impressed on upper surface. (Port Stephens, N.S.W.–Mitchell River, Vic.)"	"Sannantha pluriflora"
6	"Young branchlets smooth, warty or papillose, with entire margins. Leaf midrib not impressed"	7
7	"Branchlets with warts or large broad papillae on and between the margins"	8
7	"Branchlets not warty or papillose"	9
8	"Pedicels 2–3.5 mm long. Petals 2.5–3 mm long. (Bowling Green Bay NP–S of Townsville, Qld)"	"Sannantha papillosa"
8	"Pedicels 3.5–5 mm long. Petals 3–3.5 mm long. (Tozer Range, Qld)"	"Sannantha tozerensis"
9	"Peduncles mostly 3-flowered"	10
9	"Peduncles mostly more than 3-flowered"	11
10	"Leaves obovate. Pedicels 1.2–2.5 mm long. (Broadsound Range area–Precipice NP, Qld)"	"Sannantha brachypoda"
10	"Leaves elliptic to obovate. Pedicels 2.5–4.5 mm long. (Shoalwater Bay–near Brisbane, Qld)"	"Sannantha bidwillii"
11	"Leaves 1.7–2.5 mm wide. Sepals lacking a horn. (Townsville area, Qld–Dorrigo, N.S.W.)"	"Sannantha collina"
11	"Leaves 2.5–4.5 mm wide. Outer sepals strongly ridged or with a horn. (Armidale–Dungog area, N.S.W.)"	"Sannantha crassa"