• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Field Sowthistle

Field Sowthistle, Marsh Sowthistle - Sonchus arvensis
Field Sowthistle, Marsh Sowthistle - Sonchus arvensis
NPS Photo by Jim Pisarowicz
 
Field Sowthistle leaves have sharp prickles on their lobed margins. Field Sowthistle's have very extensive root systems even in young plants.

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...