Klamath weed
noun
Klam·ath weed
ˈkla-məth-
: a European yellow-flowered perennial Saint-John's-wort (Hypericum perforatum) that is naturalized in North America especially in rangelands
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“Klamath weed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Klamath%20weed. Accessed 28 Apr. 2025.
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