Original identification: Sparganium emersum
Current identification: Sparganium emersum
Photographer: Roger T. George
Date Photographed: July 30, 2016
Location: U.S.A., Washington, Clark County: Lacamas Prairie Natural Area Preserve. Elv. 45.641278° N, 122.455417° W.
Elevation: 191 ft.
Coordinates: [not provided]
Comments: seed heads