| Name | Zygophyllum retrofractum Thunberg |
| Authorship | Thunberg |
| Rank | Species |
| Placed in | Zygophyllum |
| Citation | 1794 Prodr. Pl. Cap. 1: 80 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Zygophyllum retrofractum Thunberg |
| Identification made in | [no date] (2) |