widgeon grass

Widgeongrass, a type of submerged aquatic vegetation (SAV), grows at Round Bay on the Severn River in Anne Arundel County, Md., on Aug. 26, 2019. (Photo by Will Parson/Chesapeake Bay Program)

Widgeongrass, a type of submerged aquatic vegetation (SAV), grows at Round Bay on the Severn River in Anne Arundel County, Md., on Aug. 26, 2019. (Photo by Will Parson/Chesapeake Bay Program)

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