| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Cyperaceae | Cyperus iria | Rice-field Flatsedge | Marshes, ditches, disturbed wet areas, sandbars and gravelbars. | Native of Old World. Reported for s. IN by Bill Thomas (pers.comm., 2022). |  |
| Cyperaceae | Cyperus microiria | Exposed shorelines, other disturbed wet areas. | Native of e. Asia. Naturalized in CT, DE, KY, OH, MA, NJ, NY, PA, and VA. |  |