| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Panicum virgatum var. cubense | Blunt Panic Grass | Wet to dry sandy pinelands. | Coastal Plain from MA to FL, west to MS; also in MI; West Indies. |  |
| Poaceae | Panicum virgatum var. spissum | Tufted Switchgrass | Gravelly or sandy fresh to brackish shores and swamps. | E. Canada south to PA, MD, DE (Kartesz 1999, 2015) and NC, SC, and GA (Sorrie 2018b). |  |
| Poaceae | Panicum virgatum var. virgatum | Switchgrass | Dry or wet sandy soils of pinelands, fresh and brackish marshes, tidal swamps, interdune swales and ponds, riverside scour prairies, mafic fens, calcareous fens and spring marshes, rocky river shores and bars, and also frequently planted. | Sw. QC and ND south to FL and TX, west to NV and n. Mexico; Bermuda; Central America. |  |