| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|
| Poaceae | Puccinellia distans | European Alkali-Grass, Goosegrass | Disturbed roadsides, coastal sands. | Native of Eurasia. Confirmed for Watauga County, NC (Poindexter, pers. comm. 2009). | 
|
| Poaceae | Puccinellia fasciculata | Eastern Alkali-Grass, Saltmarsh Goosegrass | Salt or brackish marshes. | NS south to VA; Europe; and in sw. United States. The native or introduced status of this species in ne. North America is controversial. | 
|
| Poaceae | Puccinellia maritima | Seaside Alkali-Grass, Seaside Speargrass | Salt marshes and ballast near ports. | Introduced south to se. PA (Philadelphia), NJ (Camden), and DE, especially on ballast | 
|
| Poaceae | Puccinellia rupestris | Stiff Alkali-Grass | Ballast waifs, other disturbed areas. | Native of Eurasia. | |