This plant is almost as deadly as it is beautiful. The leaves have a high concentration of irisin, which is a chemical that, if ingested, is poisonous to livestock and people alike. Symptoms can become as extreme as to include severe and simultaneous vomiting and diarrhea.
Although the specific name missouriensis means "from Missouri", the plant is not found in the state of Missouri. Rather, it was likely named by Lewis and Clark after the region of the upper reaches of the Missouri River of the Rocky Mountains for which it was first discovered.
When and where to see at Bryce:
This flower can be found in large groups in open, moist grassy meadows in the mid to higher elevations of the park and surrounding countryside. In drought years, try the area around the nearby Tropic Reservoir.
Buchanan, Hayle 1992. Wildflowers of Southwestern Utah. Bryce Canyon Natural History Association. Bryce Canyon, Utah.