1	"Corolla with shiny annular corona (life-buoy)"	2
1	"Corolla without shiny annular corona"	3
2	"Corolla lobes cream"	"Huernia insigniflora"
2	"Corolla lobes with transverse stripes of colour"	"Huernia zebrina"
3	"Stems predominantly 7-angled"	"Huernia schneideriana"
3	"Stems predominantly 5–6-angled"	4
4	"Inside of corolla uniformly coloured"	"Huernia keniensis"
4	"Inside of corolla with concentric bands of contrasting colour"	"Huernia H. volkartii var. repens"