Sedum album

It is found in the northern temperate regions of the world, often growing in crevices or free-draining rocky soil.

[5] White stonecrop is a tufted perennial herb that forms mat-like stands.

At the flowering time in July and August, the stems lengthen and are erect, occasionally branched and often pinkish-brown.

The calyx has five fleshy sepals fused at the base, the corolla consists of five regular white petals, there are ten stamens, a separate gynoecium and five pistils.

It can switch between C3 carbon fixation and crassulacean acid metabolism (CAM) depending on the availability of water.