| Name | Berberis exigua Harber |
| Authorship | Harber |
| Rank | Species |
| Placed in | Berberis Linnaeus |
| Citation | 2020 Monogr. Syst. Bot. Missouri Bot. Gard. 136: 184 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Berberis exigua Harber |
| Identification made in | [no date] (1), 2022 (1) |
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