sneezeweed

sneezeweed

[sneez-weed]
noun
any of several coarse composite plants of the genus Helenium, the flowers of which resemble sunflowers and cause sneezing.

Origin:
1830–40; sneeze + weed1

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Encyclopedia Britannica
Encyclopedia

sneezeweed

any of about 40 species of tall herbs constituting the genus Helenium of the family Asteraceae, native to North America. Most are perennials with flat-topped clusters of yellow, brown, or red flower heads and leaves that alternate along the stem. Summer- or fall-blooming species are cultivated as border plants. The disk flowers are darker than the ray flowers, which may be turned back.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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