Family = Asteraceae, Genus = Achillea, Species = millefolium, including synonyms,
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|Achillea millefolium (common yarrow, milfoil)
(= Achillea millefolium in Flora of the Pacific Northwest)
Aromatic perennial from a rhizome, 1-10 dm. tall.
Distribution: Both sides of the Cascades in Washington, from the coast to the alpine; circumboreal; widespread throughout North America.
Habitat: Common in open, dry to somewhat moist areas from low to high elevations; tolerant of disturbance.
Origin: Both native and introduced populations
WA Native Plant Society