• 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?

Littleleaf Pussytoes

Littleleaf pussytoes can vary in color by elevation. Generally at higher elevations the plant has deeply pink bracts. At lower elevations they are more commonly white. More...