| Binomial Name | Wolffia borealis (Engelm.) Landolt & Wildi ex Gandhi, Wiersema & Brouillet |
| Family | Araceae |
| Common Names | northern watermeal |
| Eastern Washington | Native |
| Synonyms | None |
| Conservation Status | |
| Notes | Wolffia punctata has been misapplied to this species. |
Click on any image to enlarge it.
Seepage pond just NW of bridge at Usk, WA; W bank of river. N 48.31514 W 117.27932; Stevens Co.; 8/28/2019
Seepage pond just NW of bridge at Usk, WA; W bank of river. N 48.31514 W 117.27932; Stevens Co.; 8/28/2019
Seepage pond just NW of bridge at Usk, WA; W bank of river. N 48.31514 W 117.27932; Stevens Co.; 8/28/2019 
Seepage pond just NW of bridge at Usk, WA; W bank of river. N 48.31514 W 117.27932; Stevens Co.; 8/28/2019 
Seepage pond just NW of bridge at Usk, WA; W bank of river. N 48.31514 W 117.27932; Stevens Co.; 8/28/2019 
Seepage pond just NW of bridge at Usk, WA; W bank of river. N 48.31514 W 117.27932; Stevens Co.; 8/28/2019. Mix of Wolffia and Lemna showing size difference. 
Seepage pond just NW of bridge at Usk, WA; W bank of river. N 48.31514 W 117.27932; Stevens Co.; 8/28/2019 
Seepage pond just NW of bridge at Usk, WA; W bank of river. N 48.31514 W 117.27932; Stevens Co.; 8/28/2019 
Seepage pond just NW of bridge at Usk, WA; W bank of river. N 48.31514 W 117.27932; Stevens Co.; 8/28/2019
