| Zornia gemella Vogel, 1838 |
| Zornia havanensis A. Rich., 1845 |
| Zornia heterophylla Sm., 1816 |
| Zornia inermis Desv., 1826 |
| Zornia laevis Schltdl. & Cham., 1830 |
| Zornia lasiocarpa Ant. Molina, 1951 |
| Zornia maranhamensis G. Don, 1832 |
| Zornia megistocarpa Mohlenbr., 1961 |
| Zornia reticulata Sm., 1818 |
| Zornia sinaloensis Mohlenbr., 1961 |
| Zornia tetraphylla Michx., 1803 |
| Zornia thymifolia Kunth, 1824 |
| Zornia venosa Mohlenbr., 1961 |
| Zygia P. Browne, 1756 |
| Zygia cognata (Schltdl.) Britton & Rose, 1928 |
| Zygia conzattii (Standl.) Britton & Rose, 1928 |
| Zygia englesingii (Standl. ex Record) Record, 1940 |
| Zygia inaequalis (Humb. & Bonpl. ex Willd.) Pittier, 1927 |
| Zygia latifolia (L.) Fawc. & Rendle, 1920 |
| Zygia latifolia var. latifolia (L.) Fawc. & Rendle, 1920 |