Acoraceae
Sweet Flag Family
1 genera
2 species
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Acorus americanusAmerican sweetflag, several-vein sweetflag
Distribution: Very limited distribution in Washington along eastern border with Idaho; widely distributed throughout northern half of North America from Alaska to Newfoundland.
Habitat: Wetlands, lake margins, and riparian zones.
Origin: Native
Flowers: May-July
Acorus calamussweet flag
Origin: Introduced from Eurasia