Definition of "purslane"

Any of the family Portulacaceae (order Caryophyllales) of succulent plants.  quotations

1. the widely-grown edible plant common purslane or summer purslane (Portulaca oleracea)  examples

2. moss-rose purslane, moss rose (Portulaca grandiflora)  examples

Other similar plants in other families in order Caryophyllales

1. winter purslane, miner's lettuce (Claytonia perfoliata)  examples

2. pink purslane (Claytonia sibirica)  examples

3. sea purslane

   1. Halimione portulacoides  examples

   2. Honckenya peploides  examples

4. shoreline purslane (Sesuvium portulacastrum)  examples

5. purslane tree (Portulacaria afra)  examples