| Name | Calamagrostis canadensis var. macouniana (Vasey) Stebbins |
| Authorship | (Vasey) Stebbins |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Calamagrostis canadensis (Michaux) P. Beauvois |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Calamagrostis canadensis var. macouniana (Vasey) Stebbins |
| Identification made in | [no date] (8) |