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gay-feather

American  
[gey-feth-er] / ˈgeɪˌfɛð ər /

noun

  1. any of several composite plants of the genus Liatris, especially L. spicata or L. scariosa, having hairy leaves and long clusters of purplish flowers.


Etymology

Origin of gay-feather

An Americanism dating back to 1810–20