Rattlesnake master, also known as Eryngium yuccifolium, is a fascinating plant that is native to the United States. Although the name rattlesnake master is unique, it also has several synonyms that refer to the same plant. One of the synonyms for rattlesnake master is bear's grass because the leaves resemble those of yucca, which is also known as bear grass. Another synonym for this plant is button snakeroot, which refers to the small, button-like flowers that grow on the plant in late summer. Other names include snake root, yucca-leaved eryngo, and button eryngo. Despite the different names, this plant remains a valuable addition to gardens and natural landscapes for its unique look and ecological value.