a bog plant, Helonias bullata, of the lily family, native to the eastern U.S., having a dense spike of small, fragrant pink flowers.
any of several other pink-flowered plants that grow in wet places.
Origin of swamp pink
An Americanism dating back to 1775–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for swamp pink
Green sprouts of the sassafras, hazel, blueberry, and swamp-pink found.