Klamath weed

noun

Klam·​ath weed ˈkla-məth- How to pronounce Klamath weed (audio)
: a European yellow-flowered perennial Saint-John's-wort (Hypericum perforatum) that is naturalized in North America especially in rangelands

Word History

Etymology

Klamath (River)

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of Klamath weed was in 1922

Dictionary Entries Near Klamath weed

Cite this Entry

“Klamath weed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Klamath%20weed. Accessed 25 Jul. 2024.

More from Merriam-Webster on Klamath weed

Love words? Need even more definitions?

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