Distribution: Oregon and Idaho, and most of the United States from Kansas east and Tennesee north
Habitat: Ponds and standing water at low elevations
Origin: Native
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Wolffia borealis in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Wolffia borealis checklist entry.
E-Flora BC: Wolffia borealis atlas page.
CalPhotos: Wolffia borealis photos.
USDA Plants: Wolffia borealis information.