Distribution: Occurring in scattered counties west of the Cascades crest in Washington; also known from California and the southeastern U.S.
Habitat: Lowland ponds in water to 1 meter deep.
Spores: June-October
Origin: Introduced from Australia
Growth Duration: Perennial
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Marsilea mutica in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Marsilea mutica checklist entry
OregonFlora: Marsilea mutica information
E-Flora BC: Marsilea mutica atlas page
CalPhotos: Marsilea mutica photos