salt marsh

noun1

1. •
   A marsh of saline water, found in the intertidal zone between land and sea, characterized by halophytic plants such as grasses and sedges adapted to periodic flooding with salt water.

   • After a succession of short runs through the salt marshes and vineyards of Languedoc, linking together many towns of considerable size, the "Catalan" joins the P.L.M. main line at Tarascon, [...]. — 1961