| fresh | North American cordgrass having leaves with dry membranous margins and glumes with long awns |
|---|---|
| fresh | eels that live in fresh water as adults but return to sea to spawn |
| fresh | flesh of fish from fresh water used as food |
| fresh | minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants |
| fresh | bivalve mollusk abundant in rivers of central United States |