Marsh dewflower
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Commelinales
- family: Commelinaceae
- genus: Murdannia
- species: Murdannia keisak
Jesup
Georgia- Berwyn Heights
- College Park
Maryland- Gatesville
North Carolina- Alexandria
- Belle Haven
- Fort Hunt
- Huntington
Virginia
United States