| Name | Cinna arundinacea var. inexpansa Fernald & Griscom |
| Authorship | Fernald & Griscom |
| Rank | Variety |
| Placed in | Cinna arundinacea Linnaeus |
| Citation | 1935 Rhodora 37: 135 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Cinna arundinacea var. inexpansa Fernald & Griscom |
| Identification made in | [no date] (1), 2025 (1) |