| Name | Pogonatum convolutum var. madagassum Thériot |
| Authorship | Thériot |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Pogonatum convolutum (Hedwig) Beauvais |
| Citation | 1926 Recueil Publ. Soc. Havraise Etudes Diverses 92: 32 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pogonatum convolutum var. madagassum Thériot |
| Identification made in | [no date] (1) |