ˈ ̷ ̷ˌ ̷ ̷ noun
1. : any of several plants of the genus Helenium: as
a. : a No. American yellow-flowered perennial herb ( H. autumnale ) the odor of which is said to cause sneezing
b. : a stout perennial herb ( H. hoopesii ) of the western United States causing spewing sickness in sheep
2. : a weed ( Centipeda orbicularis ) of the family Compositae of Australia and Tasmania
3. : sneezewort 2