Locality: | United States. Kentucky. Oldham: Off north side of US 42 ca. 1.2 mi east of Oldham/Jefferson County line and 1.9 mi east of jct with Ky 329. |
Habitat: | Growing around small pond. Assoc: Ludwigia peploides- Echinochloa crus gali- and Leerzia oryzoides. |