| Name | Glyceria canadensis var. laxa (Scribner) Hitchcock |
| Authorship | (Scribner) Hitchcock |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Glyceria canadensis (Michaux) Trinius |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Glyceria canadensis var. laxa (Scribner) Hitchcock |
| Identification made in | [no date] (1), 2008 (5) |