| Name | Viola exigua var. castillonii W. Becker |
| Authorship | W. Becker |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Viola exigua W. Becker |
| GUID | urn:lsid:ipni.org:names:265905-2 |
| Citation | 1926 Repert. Spec. Nov. Regni Veg. 23: 222 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Viola exigua var. castillonii W. Becker |
| Identification made in | [no date] (1) |
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