• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wildflowers - Field Pennycress

Field Pennycress, Frenchweed - Thlaspi arvense
Field Pennycress, Frenchweed - Thlaspi arvense
NPS Photo by Jim Pisarowicz
 
Field Pennycress seeds are poisonous to livestock but birds eat the seeds without poisoning.

Did You Know?

Blue Flax

Blue Flax is often considered a subspecies of the Eurasian L. perenne which is very similar. The plant is named after Meriwether Lewis. More...