| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Festuca ambigua | Fringed Squirrel-tail Fescue | Waif on ballast. | Native of Mediterranean Europe, Africa, and w. Asia. | |
| Poaceae | Festuca bromoides | European Squirrel-tail Fescue, Brome Fescue | Sandy disturbed areas. | Native of Eurasia. |  |
| Poaceae | Festuca filiformis | Hair Fescue, Fineleaf Sheep Fescue | Lawns, roadsides, disturbed areas. | Native of Eurasia. |  |
| Poaceae | Festuca maritima | One-sided Fescue | Disturbed areas. | Native of Mediterranean Europe. | |
| Poaceae | Festuca myuros | Rat-tail Fescue | Roadsides, fields, disturbed areas. | Native of Eurasia. |  |
| 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. |  |
| Poaceae | Festuca ovina | Sheep Fescue | Disturbed areas. | Native of Eurasia. | |
| Poaceae | Festuca paradoxa | Cluster Fescue | Bottomlands and moist uplands over mafic or calcareous rock. | PA west to WI and IA, south to SC, c. GA, and e. TX. |  |
| Poaceae | Festuca rubra | Red Fescue | Dune grasslands, salt scrub, and borders of oligohaline to mesohaline marshes in the Coastal Plain (where presumably native), in middle- to high-elevation forests, rocky woodlands, barrens, grassy balds, and bogs in the Mountains (where also presumably native), and in fields, pastures, weedy clearings, and other open, disturbed habitats (where presumably introduced from Eurasia, adventive from native populations, or some complex mix of situations). | In our area, this species is considered to be partly native and partly introduced. |  |
| Poaceae | Festuca saximontana var. saximontana | Rocky Mountain Fescue | High-elevation, boreal ledges and crevices. | Long Island (historical), north to n. NY, VT, and ON, westward. Known historically from Long Island, NY; this species is now extant in NY further north at only a few sites in high-elevation boreal sites (Werier 2022). |  |
| Poaceae | Festuca sciurea | Squirrel-tail Fescue | Sandy roadsides, fields, disturbed areas. | S. NJ south to n. peninsular FL, west to TX, and north in the interior to MO. |  |
| Poaceae | Festuca sororia | Ravine Fescue | Dry, rocky ledges. | S. CO and UT south to NM and AZ; disjunct in sw. MO (historical). Known from only one very disjunct (ca. 700 mi.) population in Jasper County, MO from its more inherently southwestern distribution. The area in which it was collected (Carthage, MO) has apparently undergone extreme landscape changes due to lead mining, and the species is almost certainly historical (Yatskievych 1999) | |
| Poaceae | Festuca subverticillata | Nodding Fescue | Moist to wet forests, dry woodlands, and disturbed areas. | ME, QC, and MB south to FL and e. TX. |  |
| Poaceae | Festuca thurberi | Waste areas near wool-combing mills, probably only a waif. | Native of sw. United States (NM, CO, WY, and UT). |  | |
| Poaceae | Festuca trachyphylla | Hard Fescue | Meadows, pastures, disturbed areas, often used for soil stabilization. | Native of Eurasia. |  |
| Poaceae | Festuca versuta | Texas Fescue | Forests and woodlands over limestone or other calcareous substrates. | AR, se. KS, and OK south to c. TX. |
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