Origin: Introduced
Conservation Status: Not of concern
[none provided]
Occurring in scattered locations on both sides of the Cascades crest in Washington; southern British Columbia to California, also from Arizona and Texas northeastward to northeastern North America.PNW Herbaria: Specimen records of Nymphoides in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Nymphoides checklist entry
OregonFlora: Nymphoides information
E-Flora BC: Nymphoides atlas page
CalPhotos: Nymphoides photos