
Origin: Introduced
Conservation Status: Not of concern
[none provided]
Occurring west of the Cascades crest in Washington, where known only from King County; Washington, California, and in the southern and eastern U.S.PNW Herbaria: Specimen records of Hydrilla in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Hydrilla checklist entry
OregonFlora: Hydrilla information
E-Flora BC: Hydrilla atlas page
CalPhotos: Hydrilla photos