Page authors: David Giblin, Don Knoke
Wolffia borealis
northern watermeal

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, and Utah, also from the central U.S. east to the Atlantic Coast.

Habitat: Ponds and standing water at low elevations

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Flies


[none provided]

Accepted Name:
Wolffia borealis (Engelm.) Landolt & Wildi ex Gandhi, Wiersema & Brouillet
Publication: Ber. Geobot. Inst. ETH Stiftung Rubel. 44:137. 1977.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Wolffia borealis in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Wolffia borealis checklist entry

OregonFlora: Wolffia borealis information

E-Flora BC: Wolffia borealis atlas page

CalPhotos: Wolffia borealis photos

19 photographs:
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