| Family | subfamily | Genus | Species | |
|---|---|---|---|---|
| Zosteraceae | Zostera L. | Zostera noltii Hornem. | Details | |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia cretica L. | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia glutinosa Delile | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia mollis Delile | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia arabica L. | Details |
| Zygophyllaceae | Tribuloideae | Tribulus L. | Tribulus macropterus Boiss. var.macropterus | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum L. | Zygophyllum album L.f. var. album | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum L. | Zygophyllum coccineum L. | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum L. | Zygophyllum simplex L. | Details |
| Zygophyllaceae | Tribuloideae | Tribulus L. | Tribulus terrestris L. | Details |
| Zygophyllaceae | Tribuloideae | Balanites Delile | Balanites aegyptiaca (L.)Delile | Details |
| Zygophyllaceae | Seetzenioideae | Seetzenia R.Br. ex Decne. | Seetzenia lanata (Willd.)Bullock | Details |
| Zygophyllaceae | Tribuloideae | Tribulus L. | Tribulus kaiseri H.Hosni | Details |
| Zygophyllaceae | Tribuloideae | Tribulus L. | Tribulus mollis Ehrenb. ex Schweinfurth | Details |
| Zygophyllaceae | Tribuloideae | Tribulus L. | Tribulus megistopterus Kralik susp. pterocarpus (Ehrenb.) ex C.Muell.)Hosni | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia scabra Forssk. | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum L. | Zygophyllum decumbens Delile var. decumbent | Details |
| Zygophyllaceae | Tribuloideae | Tribulus L. | Tribulus parvispinus Presl | Details |
| Zygophyllaceae | Tribuloideae | Tribulus | Tribulus bimucronatus Viv. subsp. inermis (Kralik) H.Hosni | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia boveana (Hadidi)Hadidi & El Garf | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia bruguieri DC. | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia olivieri DC. | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia paulayana J.Wagner & Vierh. | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia latifolia Delile | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia arabica var. viscidissima Maire | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia indica Burm.f. var. indica | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia indica var. schweinfurthii Hadidi | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum | Zygophyllum berenicense (Muschl.) Hadidi | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum L. | Zygophyllum album var. amlyocarpum (Baker) Hadidi | Details |
| Zygophyllaceae | zygophylloideae | Zygophyllum | Zygophyllum propinquum subsp. migahidii (Hadidi) Jac.Thomas & Chaudhary | Details |
| Zygophyllaceae | zygophylloideae | Zygophyllum L. | Zygophyllum propinquum Decne. | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia schimperi C.Presl | Details |
| Zygophyllaceae | Tribuloideae | Tribulus L. | Tribulus pentandrus Forssk. var. pentandrus | Details |
| Zygophyllaceae | Tribuloideae | Tribulus L. | Tribulus spurius Kralik | Details |
| Zygophyllaceae | Tribuloideae | Tribulus L. | Tribulus bimucronatus var. bispinulosus (Kralik) Hosni | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum L. | Zygophyllum aegyptium Hosny | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia isotricha Murb. | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum L. | Zygophyllum decumbens var. megacarpum Hosny | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum L. | Zygophyllum dumosum Boiss. | Details |
| Zygophyllaceae | Zygophylloideae | Zygophyllum L. | Zygophyllum orientale (C.Presl) Christenh. & Byng | Details |
| Zygophyllaceae | Zygophylloideae | Fagonia L. | Fagonia tenuifolia Hochst. & Steud. ex Boiss. | Details |