| Name | Sagina japonica f. glaberrima M. Mizushima |
| Authorship | M. Mizushima |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Sagina japonica (Swartz) Ohwi |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Sagina japonica f. glaberrima M. Mizushima |
| Identification made in | [no date] (1) |