| Name | Groutiella tomentosa (Hornschuch) Wijk & Margadant |
| Authorship | (Hornschuch) Wijk & Margadant |
| Rank | Species |
| Placed in | Groutiella |
| Citation | 1960 Taxon 9(2): 51 |
| Holdings | 81 Specimens held in the Harvard University Herbaria identified as Groutiella tomentosa (Hornschuch) Wijk & Margadant |
| Identification made in | [no date] (79), 2024 (2) |