| Name | Phalaris tuberosa var. stenoptera (Hackel) Hitchcock |
| Authorship | (Hackel) Hitchcock |
| Rank | Variety |
| Placed in | Phalaris tuberosa Linnaeus |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Phalaris tuberosa var. stenoptera (Hackel) Hitchcock |
| Identification made in | [no date] (1) |