Calyptridium parryi, synonym Cistanthe parryi, is a species of flowering plant in the family Montiaceae.

[citation needed] It is native to the southwestern United States and Baja California.

It is a small annual herb producing spreading stems up to about 11 centimeters long.

There is a basal rosette of small, thick, spoon-shaped leaves no more than about 3 centimeters long, with many along the stems as well.

The inflorescence is a cluster a few centimeters wide, with each bearing three white petals surrounded by a few thin sepals.