red nettle
/ˈrɛd ˌnɛtl/noun
1A form of common nettle, Urtica dioica, or Roman nettle, U. pilulifera, with reddish parts.
2Formerly: †a kind of sea anemone (not identified) (obsolete ). Later: ( English regional ) a kind of jellyfish. Compare sea-nettle rare.
- The French regional name cul de cheval has been associated with various anemones, including Metridium senile, Anemonia sulcata, and the beadlet anemone, Actinia equina..
Origin
Old English; earliest use found in Bald's Leechbook. From red + nettle.