1	"Ovary inferior or half-inferior; capsule circumsciss; flowers sessile, in terminal heads (except for Portulaca bicolor)."	Portulaca
1	"Ovary superior; capsule valvate or with a terminal pore; flowers pedicellate."	2
2	"Capsule separating into an epicarp that falls early and a persistent endocarp with intervalvular bristles."	3
2	"Capsule with united pericarp."	4
3	"Leaves with axillary hairs; stamens 8–10."	Anacampseros
3	"Leaves lacking axillary hairs; stamens 10–20."	Talinum
4	"Leaves usually sessile, rarely petiolate, never dilated at the base, not stem-clasping; petals free."	Calandrinia
4	"Leaves with dilated membranous or scarious base, stem-clasping; petals united at the base."	5
5	"Plants erect with ascending stems; leaves opposite; petals unequal, the basal tube split on one side."	Montia
5	"Plants prostrate with rhizomatous stems; leaves alternate; petals equal, basal tube complete"	Neopaxia