| Name | Berberis gagnepainii var. lanceifolia Ahrendt |
| Authorship | Ahrendt |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Berberis gagnepainii C. K. Schneider |
| Citation | 1941 J. Bot. 79(6): 39 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Berberis gagnepainii var. lanceifolia Ahrendt |
| Identification made in | 1982 (1) |