Wolffia
water-meal
3 species
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Wolffia borealisnorthern 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
Wolffia brasiliensisBrazilian watermeal
Distribution: Occurring chiefly west of the Cascades crest in Washington; southwestern British Columbia to California, also from the southern Great Plains east to the Atlantic Coast in the U.S.
Habitat: Ponds and standing water at low elevations.
Origin: Native
Growth Duration: perennial
Wolffia columbianaColumbian watermeal
Distribution: Occurring chiefly west of the Cascades crest in Washington; Washington to California, east to Alberta, Idaho, Montana, and Colorado, and east from the Great Plains to the Atlantic Coast.
Habitat: Ponds and standing water at low elevations.
Origin: Native
Growth Duration: perennial