| Portulaca johnstonii Henrickson, 1981 |
| Portulaca juliomartinezii Ocampo, 2018 |
| Portulaca karwinskii Fisch. & E. Mey., 1846 |
| Portulaca lanceolata Haw., 1803 |
| Portulaca marginata Kunth, 1823 |
| Portulaca matthewsii Ocampo, 2003 |
| Portulaca megalantha Steud., 1840 |
| Portulaca mendocinensis Gillies ex Hook., 1833 |
| Portulaca mexicana P. Wilson, 1928 |
| Portulaca multistaminata Poelln., 1942 |
| Portulaca mundula I.M. Johnst., 1948 |
| Portulaca oleracea L., 1753 |
| Portulaca paniculata Jacq., 1760 |
| Portulaca papulosa Schltdl. ex Poelln., 1934 |
| Portulaca parvula A. Gray, 1887 |
| Portulaca patens Jacq., 1772 |
| Portulaca pilosa L., 1753 |
| Portulaca planooperculata Kuntze, 1898 |
| Portulaca portulacastrum L., 1753 |
| Portulaca pusilla Kunth, 1823 |