What is the meaning of bitterweed?

Widespread European weed with spiny tongue-shaped leaves and yellow flowers; naturalized in United States.
- synonyms: oxtongue, bristly oxtongue, bugloss, Picris echioides
Any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma.
- synonyms: ragweed, ambrosia

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APA	WordNet. (2010). bitterweed. Retrieved September 20, 2026, from http://smartdefine.org/bitterweed/definitions/1326600
Chicago	WordNet. 2010. "bitterweed" http://smartdefine.org/bitterweed/definitions/1326600 (accessed September 20, 2026).
Harvard	WordNet 2010, bitterweed, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/bitterweed/definitions/1326600>.
MLA	WordNet. "bitterweed" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/bitterweed/definitions/1326600>

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