Original identification: Wolffia borealis
Current identification: Wolffia borealis
Photographer: Robert L. Carr
Date Photographed: August 30, 2019
Location: U.S.A., Washington, Pend Oreille County: Seepage pond just NW of bridge at Usk, W bank of river
Elevation: [not provided]
Coordinates: 48.31514° N, 117.27932° W