Distribution: Documented west of the Cascades crest in King County in Washington; central Oregon to California, east across the southwestern U.S. and southern Great Plains to eastern North America.
Habitat: Noxious; ponds, slow streams, and sloughs.
Flowers: June-September
Origin: Introduced
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Ludwigia peploides in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Ludwigia peploides checklist entry.
E-Flora BC: Ludwigia peploides atlas page.
CalPhotos: Ludwigia peploides photos.
USDA Plants: Ludwigia peploides information.