Calyptridium pulchellum, synonym Cistanthe pulchella, is a rare species of flowering plant in the family Montiaceae.

[2][3] It is endemic to the Sierra Nevada foothills of central California, where it is known from only a few scattered occurrences.

The inflorescence is a number of more or less spherical clusters of rose-colored petals and thin sepals.

[7] A major threat to this species is habitat fragmentation; populations have been bisected by roads, dirtbike trails, and firebreaks.

[7] Since most of the populations are small, they are vulnerable to destruction from any one severe local event, such as drought or disease, and since the populations sometimes fall to very low numbers they are at risk for genetic bottlenecks and genetic drift.