• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Russian Thistle

Russian Thistle - Salsola iberica
Russian Thistle - Salsola iberica
NPS Photo by Jim Pisarowicz
 
Russian Thistle seeds are spread as the mature planets break off at ground level.  The wind then blows the plant around as a tumbleweed, spreading the Russian Thistle's seeds.  Russian Thistle was introduced in the late 1800s from Russia.

Did You Know?

Star Lily

The Star Lilly (Leucocrinum montanum) has several common names including sand lily, sage lily, mountain lily, wild tuberose, and Star-of-Bethlehem.  The word Leucocrinum comes from Greek meaning "white lily." More...