Sweet Flag Family
1 genus
1 species
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Acorus calamussweet flag
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; Washington to California, east to Idaho, also widespread in central and eastern North America.
Habitat: Wetlands, pond shores, and streambanks.
Origin: Introduced from Eurasia
Flowers: May-July
Growth Duration: Perennial