| Name | Fagonia pachyacantha Rydberg |
| Authorship | Rydberg |
| Rank | Species |
| Placed in | Fagonia |
| Citation | 1910 N. Amer. Fl. 25(2): 105 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Fagonia pachyacantha Rydberg |
| Identification made in | [no date] (7) |
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