n. A plant of the genus Helenium, especially Helenium autumnale.
n. A plant of the genus Centipeda; either of the species Centipeda cunninghamii or Centipeda minima, which induce sneezing and are known as a folk remedy for colds and allergic reactions.
the GNU version of the Collaborative International Dictionary of English
n. A yellow-flowered composite plant (Helenium autumnale) the odor of which is said to cause sneezing.
The Century Dictionary and Cyclopedia
n. A plant of the genus Helenium, mostly the common H. autumnale.
n. In Australia, a dwarf, erect, odorous herb of the aster family, Centipeda Cunninghamii, considered a valuable specific for certain diseases of the eye.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. any of various plants of the genus Helenium characteristically causing sneezing
Word Usage
"I thought it was called sneezeweed because it bloomed at the same time as the notorious Ragweed and blame was misguided."