| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Cyperaceae | Carex decomposita | Cypress-knee Sedge, Epiphytic Sedge | Blackwater swamp forests, often growing on cypress knees, cypress bases, or fallen logs (often at or near water level), river sloughs, beaver marshes, less typically inland in sloughs or in depressions in bedrock river scour. | New York west to Michigan, south to sw. Georgia (Jones & Coile 1988), Panhandle Florida, and Texas; rarely disjunct inland from the Coastal Plain, especially in river sloughs or beaver marshes (Bradley et al. [in prep.]). |  (c) Fleming, Gary P. |
| Cyperaceae | Carex diandra | Lesser Tussock Sedge | Swamps, bogs, peaty sedge meadows, especially over limestone. | Circumboreal, south in North America to w. Maryland, Pennsylvania, Tennessee, Ohio, Illinois, Colorado, California; also reported from Tennessee on the basis of a destroyed specimen. |  (c) Sorrie, Bruce A. - CC-BY |
| Cyperaceae | Carex prairea | Prairie Sedge | Calcareous fens and spring marshes, wet prairies, marshes, bottomlands. | Québec west to Yukon Territory, south to New Jersey, w. Virginia, Ohio, Nebraska, Montana, and British Columbia. |  (c) Ward, Scott G |