• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Western Yarrow

Western Yarrow - Achillea millefolium
Western Yarrow - Achillea lanulosa
NPS Photo by Jim Pisarowicz
 
Two kinds of yarrow may be found in the Black Hills. Western Yarrow is the most frequently seen. Common Yarrow is a Eurasian species.

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