Can Lysichiton and Lewisia both be found in America?
Lewisia Lewisia is a plant genus, named for Meriwether Lewis who encountered the species in 1806. The native habitat of "Lewisia" species is north facing cliffs in the western part of North America. Local Native Americans ate the roots, which have also been used to treat sore throats.
Lewis Lake (Wyoming) Lewis Lake is located in the U. S. state of Wyoming in the southern part of Yellowstone National Park, about 4 mi southeast of Shoshone Lake, and approximately 10 mi southwest of Yellowstone Lake. Lewis Lake and Shoshone Lake are both located a few miles northeast of the Pitchstone Plateau.