| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Festuca octoflora var. hirtella | Disturbed areas. | NE and BC south to TX, CA, and Mexico. | ||
| Poaceae | Festuca octoflora var. octoflora | Southern Six-weeks Fescue | Fields, roadsides, disturbed areas. | S. NJ south to FL, west to TX and n. Mexico, north in the interior to MO and OK. |  |
| Poaceae | Festuca octoflora var. tenella | Northern Six-weeks Fescue | Fields, roadsides, disturbed areas. | S. ME west to BC, south to GA, AR, TX, and CA. |  |