| Name | Panicum umbrosum J. Le Conte ex Torrey |
| Authorship | J. Le Conte ex Torrey |
| Rank | Species |
| NomenclaturalStatus | LaterHomonym |
| Placed in | Panicum Linnaeus |
| Remarks | non Retz., 1786 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Panicum umbrosum J. Le Conte ex Torrey |
| Identification made in | [no date] (2), 1913 (1) |