| Name | Panicum horizontale (Willdenow) G. Meyer |
| Authorship | (Willdenow) G. Meyer |
| Rank | Species |
| Placed in | Panicum Linnaeus |
| Citation | 1818 Prim. Fl. Esseq. 54 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Panicum horizontale (Willdenow) G. Meyer |
| Identification made in | [no date] (1) |