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ebony spleenwort

noun
  1. a fern, Asplenium platyneuron, of woody areas of North America, having ladderlike leaves and shiny, dark brown stems.
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Origin of ebony spleenwort

An Americanism dating back to 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018