bit·​ter·​weed | \ ˈbi-tər-ˌwēd How to pronounce bitterweed (audio) \

Definition of bitterweed

: any of several American plants containing a bitter substance: such as
a : either of two ragweeds:
(1) : a low-growing common ragweed (Ambrosia artemissiifolia)
(2) : horseweed
b : an annual yellow-flowered sneezeweed (Helenium amarum synonym H. tenuifolium)
c : an erect annual composite herb (Hymenoxys odorata) of the southwestern U.S. that has yellow flowers and is poisonous to livestock

First Known Use of bitterweed

1819, in the meaning defined above

Keep scrolling for more

Learn More About bitterweed

Time Traveler for bitterweed

Time Traveler

The first known use of bitterweed was in 1819

See more words from the same year

Dictionary Entries Near bitterweed

bitter waternut


bitter willow

See More Nearby Entries 

Statistics for bitterweed

Cite this Entry

“Bitterweed.” Dictionary, Merriam-Webster, Accessed 28 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!