sneezeweed

[ sneez-weed ]
/ ˈsnizˌwid /

noun

any of several coarse composite plants of the genus Helenium, the flowers of which resemble sunflowers and cause sneezing.

Origin of sneezeweed

First recorded in 1830–40; sneeze + weed1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019