Helenium autumnale

from WordNet (r) 3.0 (2006)

Helenium autumnale
    n 1: North American perennial with bright yellow late summer
         flowers [syn: {autumn sneezeweed}, {Helenium autumnale}]

from The Collaborative International Dictionary of English v.0.48

Sneezeweed \Sneeze"weed`\, n. (Bot.)
   A yellow-flowered composite plant ({Helenium autumnale}) the
   odor of which is said to cause sneezing.
   [1913 Webster]

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