Evert's Thistle is named for Truman Everts who was among the 1870 party exploring Yellowstone Park. He stated that he owed his life to this thistle! </span></span></p><p style="font-size: 21px;"> </p><p style="font-size: 21px;"><span style="font-size:21px;"><span style="font-family:brandon-grot-w01-light,sans-serif;">During the exploration he became separated from his companions, was thrown by his horse, and broke his spectacles. As he was extremely nearsighted (and with no horse), he was unable to hunt game. Starving to death, he began eating thistle roots, which he existed on until he was rescued a month later.