fleabane

fleabane

[flee-beyn]
noun
any of various composite plants, as Pulicaria dysenterica, of Europe, or Erigeron philadelphicus, of the U.S., reputed to destroy or drive away fleas.

Origin:
1540–50; flea + bane

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
fleabane (ˈfliːˌbeɪn)
 
n
1.  any of several plants of the genus Erigeron, such as E. acer, having purplish tubular flower heads with orange centres: family Asteraceae (composites)
2.  any of several plants of the related genus Pulicaria, esp the Eurasian P. dysenterica, which has yellow daisy-like flower heads
3.  Canadian fleabane US name: horseweed a related plant, Conyza (or Erigeron) canadensis, with small white tubular flower heads
4.  any of various other plants reputed to ward off fleas

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
Encyclopedia

fleabane

any of the plants of the genus Erigeron of the family Asteraceae, order Asterales, containing about 200 species of annual, biennial, and perennial herbs native primarily to temperate parts of the world. Some species are cultivated as rock garden or border ornamentals, especially E. alpinus, E. annuus, E. aurantiacus, E. karvinskianus, and E. speciosus.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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