| Name | Berberis insignis subsp. incrassata (Ahrendt) Chamberlain |
| Authorship | (Ahrendt) Chamberlain |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Berberis insignis Hooker f. & Thomson |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Berberis insignis subsp. incrassata (Ahrendt) Chamberlain |
| Identification made in | [no date] (2), 1995 (2), 1996 (2) |