New American Oxford Dictionary
helenium
he len i um |həˈlēnēəm həˈliniəm | ▶noun an American plant of the daisy family that bears many red to yellow flowers, each having a prominent central disk. [Genus Helenium, family Compositae: many species, esp. the sneezeweeds. ] ORIGIN modern Latin, from Greek helenion. The term originally denoted the herb elecampane, possibly in commemoration of Helen of Troy (said to have planted elecampane on the island of Pharos ); the current designation was adopted by Linnaeus in the 18th cent.
Oxford Dictionary
helenium
helenium |hɛˈliːnɪəm | ▶noun an American plant of the daisy family, which bears many red to yellow flowers, each having a prominent central disc. ●Genus Helenium, family Compositae. ORIGIN modern Latin, from Greek helenion. The term originally denoted the herb elecampane, possibly in commemoration of Helen of Troy (said to have planted elecampane on the island of Pharos ); the current designation was adopted by Linnaeus in the 18th cent.