| Name | Aristida stenostachya Clayton |
| Authorship | Clayton |
| Rank | Species |
| Placed in | Aristida Linnaeus |
| Citation | 1968 Bol. Soc. Argent. Bot. 12: 111 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Aristida stenostachya Clayton |
| Identification made in | [no date] (1) |