| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Cyperaceae | Cyperus thyrsiflorus | Southern Flatsedge | Calcareous woodlands/hammocks, swamp edges, and shell middens. | E. SC south to s. FL, west to se. TX; West Indies; Mexico to South America. |  |
| Cyperaceae | Cyperus pseudothyrsiflorus | Disturbed areas, damp soils. | TX south into Mexico. |
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