Hydrophyte

Any plant successfully growing in water or in soil that is at least periodically deficient in oxygen as a consequence of soil saturation during some part of the growing season. Hydrophytes are those plants "typically adapted for life in saturated soil conditions (as referred to in the federal definition of wetlands (40 cFR 230.3[t]). The occurrence of wetlands vegetation, or hydrophytes, is one of the three required parameters in defining a wetland regulated under Section 404. (US EPA, Wetlands Regulation Guidebook for New York State, 1993)