| Portulaca racemosa L., 1762 |
| Portulaca reflexa (Cav.) Haw., 1803 |
| Portulaca retusa Engelm., 1850 |
| Portulaca rubricaulis Kunth, 1823 |
| Portulaca rzedowskiana Ocampo, 2002 |
| Portulaca suffrutescens Engelm., 1881 |
| Portulaca teretifolia Kunth, 1823 |
| Portulaca triangularis Jacq., 1760 |
| Portulaca umbraticola Kunth, 1823 |
| Portulaca umbraticola subsp. lanceolata J.F. Matthews & Ketron, 1992 |
| Portulaca yecorensis Henrickson & T. Van Devender, 1999 |
| Portulacaceae Juss., 1789 |