1	"Small shrub; fruit indehiscent and with 3 flattened edges (wings) "	Portulacaria
1	"Herb; fruit dehiscent "	2
2	"Capsule opening by a lid "	3
2	"Capsule splitting into 2–3 valves "	4
3	"Leaves mostly fleshy, dispersed along the stems; ovary more or less inferior "	Portulaca
3	"Leaves generally at the base of the plant; ovary superior "	Lewisia
4	"Stem leaves alternate, fleshy, to 8 cm long "	Talinum
4	"Stem leaves opposite, fused at the base "	Claytonia