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Common Yarrow

Achillea millefolium

Photo by Christine Y.
Published on Project Noah
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41.5744, -73.4428

Field Notes

Description:

The leaves are evenly distributed along the stem and have varying degrees of hairiness, appearing almost feathery or fern-like. The inflorescence, which contains flowers that are white to pink in color, is produced in a flat-topped capitulum cluster.

Notes:

Often considered to be an aggressive weed, it was originally introduced to America during colonial times, and has since naturalized throughout the U.S. Yarrow has many interesting and beneficial uses: It has been widely used in food, tea, and traditional medicine. Additionally, several types of cavity-nesting birds line their nests with yarrow, and experimental data suggests that adding yarrow to nests may inhibit the growth of parasites. The essential oil of Yarrow may be a beneficial larvacide as it has been show to kill the larvae of Aedes albopictus.

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