| Name | Aristida longespica var. geniculata (Rafinesque) Fernald |
| Authorship | (Rafinesque) Fernald |
| Rank | Variety |
| Placed in | Aristida longespica Poiret |
| Holdings | 75 Specimens held in the Harvard University Herbaria identified as Aristida longespica var. geniculata (Rafinesque) Fernald |
| Identification made in | [no date] (73), 2011 (2) |