| Name | Hosackia watsoni Vasey & Rose |
| Authorship | Vasey & Rose |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Hosackia Douglas ex Bentham |
| Citation | 1888 Proc. U. S. Natl. Mus. 11: 528 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hosackia watsoni Vasey & Rose |
| Identification made in | [no date] (2) |