| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Coleataenia rigidula ssp. condensa | Dense Panic Grass | Marshes, meadows, low woods, ditches, stream and pond shores, freshwater tidal shores. | Coastal Plain south from se. MA to FL, west to se. TX and AR; disjunct in the West Indies. |  |
| Poaceae | Coleataenia rigidula ssp. rigidula | Redtop Panic Grass | Wet sandy or peaty soils low woods, meadows, marshes, shores, swamps, ditches, often weedy. | ME and MI south to FL and TX; also in CA and BC; disjunct in Central America. |  |