purslane

any of various prostrate weeds (genus Portulaca) of the purslane family, with pink, fleshy stems and small, yellow, short-lived flowers; esp., an annual (P. oleracea) sometimes used as a potherb and in salads

designating a family (Portulacaceae, order Caryophyllales) of dicotyledonous plants, including claytonia and portulaca