Origin: Native
Conservation Status: Not of concern
[none provided]
Occurring east of the Cascades in far eastern Washington; disjunct in eastern Washington, otherwise Oregon to California, also in the central and southeastern U.S.PNW Herbaria: Specimen records of Pilularia in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Pilularia checklist entry
OregonFlora: Pilularia information
E-Flora BC: Pilularia atlas page
CalPhotos: Pilularia photos