| Name | Horkelia fusca subsp. tenella (S. Watson) D. D. Keck |
| Authorship | (S. Watson) D. D. Keck |
| Rank | Subspecies |
| Placed in | Horkelia fusca Lindley |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Horkelia fusca subsp. tenella (S. Watson) D. D. Keck |
| Identification made in | 1938 (1) |