| Name | Panicum diffusum Swartz |
| Authorship | Swartz |
| Rank | Species |
| Placed in | Panicum Linnaeus |
| Citation | 1788 Prodr. [Swartz] 23 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Panicum diffusum Swartz |
| Identification made in | [no date] (1) |