| 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. Massachusetts to Florida, west to se. Texas and Arkansas; disjunct in the West Indies. |  (c) Fleming, Gary P. |
| Poaceae | Coleataenia rigidula ssp. rigidula | Redtop Panic Grass | Wet sandy or peaty soils low woods, meadows, marshes, shores, swamps, ditches, often weedy. | Maine and Michigan south to Florida and Texas; also in California and British Columbia; disjunct in Central America. |  (c) Ziomber, Derek - CC-BY-NC-SA, permission granted to NCBG |