| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|
| Poaceae | Mnesithea cylindrica | Carolina Jointgrass | Prairies, oak woodlands, roadsides and other disturbed ground in areas formerly prairie-like and fire-maintained, perhaps now extirpated in portions of our area (including NC). | Sc. NC, nc. GA, ne. AL, n. MS, MO and se. KS south to s. FL and s. TX. | 
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| Poaceae | Mnesithea granularis | Pitscale Grass | Hammocks, pinelands, disturbed areas. | Native of the Old World. Reported for sw. GA and other Gulf Coast states (Thieret in FNA 2003a, Jones & Coile 1988, Kartesz 1999). | 
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| Poaceae | Mnesithea rugosa | Wrinkled Jointgrass | Limesink ponds (dolines), depression meadows, clay-based Carolina bays, wet pine savannas, wet pine flatwoods, marl prairies, disturbed areas (such as seeps in powerline rights-of-way), always in places with a seasonally high water-table. | S. NJ south to FL and west to TX. | 
|
| Poaceae | Mnesithea tessellata | Pitted Jointgrass | Wet pine savannas and bogs. | Sw. GA and FL Panhandle west to e. LA, an East Gulf Coastal Plain endemic. | 
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| Poaceae | Mnesithea tessellata | Pitted Jointgrass | Wet pine savannas and bogs. | Sw. GA and FL Panhandle west to e. LA, an East Gulf Coastal Plain endemic. | 
|
| Poaceae | Mnesithea tuberculosa | Smooth Jointgrass | Pond margins. | Sw. GA (Mitchell County) (Sorrie 1998b) west to s. AL, and in the FL peninsula; Cuba. | 
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