Cistanthe monandra (formerly Calyptridium monandrum) is a species of flowering plant in the purslane family known by the common name Common Pussypaws. It is native to the southwestern United States and adjacent Baja California, where it grows in sandy areas such as deserts and coastal and mountain scrub habitats. This is a fleshy, flat annual herb producing short stems which extend along the ground or spread upright from a small taproot. Thick, spoon-shaped leaves occur in a basal rosette at the base of the stem, reaching up to about 5 centimeter in length. There are smaller leaves along the stems. Small flower clusters sprout from the stem bearing many flowers, each with fleshy, triangular sepals and three pink or red petals only a few millimeters long. The fruit is a translucent, oblong capsule up to six millimeters long containing several shiny, black seeds.