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cup plant

noun
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Definition of cup plant

: a tall yellow-flowered herb (Silphium perfoliatum) of the U.S. whose upper leaves are connate at the base and form a cup around the stem

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“Cup plant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cup%20plant. Accessed 25 Sep. 2020.

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