Delosperma napiforme

Delosperma napiforme (also known as Mestoklema macrorrhizum) is a dwarf perennial plant, native to the French Island of Réunion, but also now found in Madagascar. It has white flowers

Cultivation and uses
It can be cultivated in a wide range of areas with a Mediterranean climate such as California. It can withstand wet summers and cold moist winters which makes it unusual in climatic requirements for this genus.