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Definition of cup plant

cup plant

Plural:cup plants
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• noun

1

North American A tall perennial wildflower of the aster family (Silphium perfoliatum), native to eastern and central North America, bearing showy, sunflower-like yellow blossoms and opposite leaves whose bases fuse around the square stem to form water-holding cups.

Example

"Goldfinches and native bees frequently visit the cup plant in late summer to feed on its bright yellow blossoms and drink from the rainwater collected in its leaves."

Synonyms
View all synonyms for cup plant

• Nearby Words

cunner
cup
cup and saucer vine
cup plant
cupboard
cupcake
cuphea

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Cup plant. In Wordmom Dictionary. Retrieved Oct 17, 2026, from https://wordmom.com/dictionary/cup%20plant
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