| Name | Calamagrostis longirostris Buckley |
| Authorship | Buckley |
| Rank | Species |
| Placed in | Calamagrostis Adanson |
| Citation | 1866 Prelim. Rep. Surv. Texas App. 2 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Calamagrostis longirostris Buckley |
| Identification made in | 2016 (1) |