Genus: 28-35 species.
Region: Europe, Himalayas, northern Africa.
habitat: wet places; prefers light shadow.
Ecology: larval host for the butterfly Parnassius apollonius.

BotanyHerb; succulent; evergreen; mat-forming; perennial with rosettes of leaves.
Inflorescence: lateral panicles.
Leaves: many colors, bright green, red-flushed in summer; spoon-shaped to oblong; hairy.
Flowers: white; large; saucer- to star-shaped; blooming May to August.

TaxonomyRosularia was originally described by De Candolle as a section of the genus Umbilicus. Stapf raised it to the level of genus. Berger included it in family Crassulaceae subfamily Sedoideae, as one of 9 genera. Since then a number of species have been transferred in and out of the genus, including Sedum sempervivoides, which at one stage was placed in Prometheum. The genus Sempervivella was submerged in Rosularia. Rosularia is now placed within the Leucosedum clade.