sneezeweed

noun

Any of several New World herbs of the genus Helenium of the composite family, having yellow to red-purple rayed flower heads.

noun

In Australia, a dwarf, erect, odorous herb of the aster family, Centipeda Cunninghamii, considered a valuable specific for certain diseases of the eye.

noun

A plant of the genus Helenium, mostly the common H. autumnale.

noun

A yellow-flowered composite plant (Helenium autumnale) the odor of which is said to cause sneezing.

noun

A plant of the genus Helenium, especially Helenium autumnale.

noun

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.

noun

any of various plants of the genus Helenium characteristically causing sneezing