| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Panicum dichotomiflorum var. bartowense | Bartow Panicgrass | Open, usually wet soils, often emergent in shallow water or on exposed shores. | FL (and unconfirmed reports northward); Bahamas; e. Cuba; Jamaica. | |
| Poaceae | Panicum dichotomiflorum var. dichotomiflorum | Spreading Panicgrass, Fall Panicgrass | Marshy shores, exposed wet soils, alluvial deposits in floodplain forests, spoil banks, ditches. | E. Canada west to BC, south to FL, TX, and Mexico; Bahamas (Sorrie & LeBlond 1997); West Indies (Cuba, Haiti, Guadelupe); widespread in s. Central America and South America. |  |
| Poaceae | Panicum dichotomiflorum var. puritanorum | Puritan Panicgrass | Wet sands and peats of seasonally exposed pond and lake shores. | NS, NH, and NY south to DE (Sorrie & LeBlond 2008), VA, NC, and e. SC (Bradley et al. [in prep.]); disjunct in IN and IL. |  |