wall pepper
- a small Eurasian crassulaceous plant, Sedum acre, having creeping stems, yellow flowers, and acrid-tasting leaves
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Examples from the Web for wall pepper
Historical Examples
They have a hot sharp taste, and the plant is sometimes called "Wall-Pepper."
Wildflowers of the FarmArthur Owens Cooke