| Name | Plagiothecium undulatum (Hedwig) Schimper |
| Authorship | (Hedwig) Schimper |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Plagiothecium |
| Contains | Plagiothecium undulatum subsp. subneckeroideum Kindberg |
| Citation | 1851 Bryol. Eur. 5: 195. 506 (fasc. 48 Monogr. 17. 13) |
| Holdings | 83 Specimens held in the Harvard University Herbaria identified as Plagiothecium undulatum (Hedwig) Schimper |
| Identification made in | [no date] (82), 1985 (1) |