Table 2. Prominent differences between Oberholzeria and the early divergent genera from both the tribes Genisteae (Dichilus and Melolobium) and Crotalarieae (Euchlora, Bolusia and Crotalaria).

Character	Character state	Genus
		Oberholzeria	Dichilus	Melolobium	Euchlora	Bolusia	Crotalaria
Habit	- Succulent	-	+	+	+	+	+
	+ Herbaceous (but non-succulent)
Leaves	- Pinnately compound	-	+	+	+/++	+	+/(++)
	+ Digitately compound
	++ Simple
Calyx (symmetry)	- Equally five-lobed	-	+	+	-	-	-/(+)
	+ Bilabiate
Calyx (shape)	- Stellate (lobes widely spreading)	-	+	+	+	+	+
	+ Campanulate
Callosities (on standard lamina)	- Absent	-	+	-	-	+	+
	+ Present
Standard	- Strongly reflexed	-	-	+	+	+	+
	+ Not strongly reflexed
Wing petals	- Longer than keel	-	++	-/+	-	++	-/+/++
	+ Equal to keel
	++ Shorter than keel
Staminal tube	- Fused; without a slit	-	+	+	+	+	+
	+ Fused; open along upper margin
Anther configuration	- 5 + 5	-	+	+	++	-	-
	+ 4 + 1 + 5
	++ 4 + 6
Style surface	- Glabrous	-	-	-	-	-	+
	+ Hairy
Fruit shape	- Obovate-clavate	-	+	+	-/+	-/+	-/(+)/++
	+ Oblong to linear-oblong
	++ Round (in two dimensions)
Fruit inflation	- Compressed or slightly inflated	-	-	-	+	+	(-)/+
	+ Highly inflated
Fruit orientation	- Pendent	-	+	+	-	-	-
	+ Pointing to the sides/upwards
Habitat	- Succulent Biome	-	(-)/+	-/+/+++	-/+++	-/+	(-)/+/(++)/ (+++)
	+ Grass Biome
	++ Rainforest Biome
	+++ Temperate Biome

Biomes referred to under habitat follow Schrire and co-workers [30].