Helonias
（重定向自Swamp honeysuckle）
Helonias bullata (swamp pink) is a rare perennial rhizomatous herb native to the eastern United States, the only known species in the genus Helonias. The root system is extensive in comparison to the apparent size of the plant on the surface. Blooming in March to May, its fragrant flowers are pink and occur in a cluster at the end a vertical spike which may reach up to 3' in height. It has evergreen, lance-shaped, and parallel-veined leaves ranging from dark green to light yellow green in color that form a basal rosette.