a hardy composite plant, Silphium perfoliatum, of eastern North America, having large yellow flower heads and opposite leaves that envelop the stem, forming a cup.
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What does “clement” mean?
Origin of cup plant
An Americanism dating back to 1840–50
Words nearby cup plant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020