| Name | Viguiera obscura (Blake) Blake |
| Authorship | (Blake) Blake |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Viguiera Kunth |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Viguiera obscura (Blake) Blake |
| Identification made in | 1917 (1), 1985 (1) |