sneezeweed [植]堆心菊(属)
sneezeweed[ noun ]
any of various plants of the genus Helenium characteristically causing sneezing
<noun.plant>
Sneezeweed \Sneeze"weed`\, n. (Bot.)
A yellow-flowered composite plant ({Helenium autumnale}) the
odor of which is said to cause sneezing.