| Name | Drepanocladus uncinatus var. flaccidus Grout |
| Authorship | Grout |
| Rank | Variety |
| Placed in | Drepanocladus uncinatus (Hedwig) Warnstorf |
| Citation | 1929 Check List Pleuroc. Mosses N. Amer. 16 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Drepanocladus uncinatus var. flaccidus Grout |
| Identification made in | [no date] (1) |