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
What's Trending Now
More Trending Words
cup plant
noun
Explore M-W
There's more!
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up cup plant? Please tell us where you read or heard it (including the quote, if possible).
