• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Wavyleaf Thistle

Wavyleaf Thistle, Cirsium undulatum
Wavyleaf Thistle - Cirsium undulatum
NPS Photo by Jim Pisarowicz
 
The Wavyleaf Thistle is a native thistle. It is a biennial and prefers well-drained locations.
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    Plants - Research bibliograhy of plant studies done in the park Read More

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Did You Know?

Prairie Dog Barking

Lewis and Clark, while on their journey up the Missouri River in 1804, noted that this "wild dog of the prairie...appears here in infinite numbers." More...