WordNet sense 1 (biennial of southwestern United States having white stems and toothed leaves that is grown for its large pale yellow flowers that open in early morning):

Mentzelia laevicaulis, Mentzelia livicaulis

WordNet sense 2 (any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads):

gayfeather, gay-feather, snakeroot, button snakeroot