Oxytropis sericea

White loco weed, Oxytropis sericea, catches the late afternoon sunlight in a high mountain meadow. This wildflower has beautiful white blossoms on stalks up to 18 inches high, but it is said to be very toxic to humans and livestock. It is indigenous most of the western United States, from the plains into high mountain areas. (Photo: iStock - chapin31)

Livestock, Western Region, Wyoming

Watch out for locoweed: profile of a killer plant

Don’t let the cheery blooms fool you, though; some of these Wyoming flowering plants are toxic to livestock. Read More