Distribution: Occurring west of the Cascades crest along the outer coast; Alaska to Washington, east to southwestern Alberta; also in eastern Asia.
Habitat: Aquatic, sometimes in tidal habitats, from the lowlands to montane.
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Isoetes maritima in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Isoetes maritima checklist entry
OregonFlora: Isoetes maritima information
E-Flora BC: Isoetes maritima atlas page
CalPhotos: Isoetes maritima photos