Dictionary.com
definitions
  • synonyms

rattlesnake fern

noun
  1. any of several American grape ferns, especially Botrychium virginianium, having clusters of sporangia resembling the rattles of a rattlesnake.
Show More

Origin of rattlesnake fern

An Americanism dating back to 1805–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018