Source : WordNet®

shuttlecock fern
     n : tall fern of northern temperate regions having graceful
         arched fronds and sporophylls resembling ostrich plumes
         [syn: {ostrich fern}, {fiddlehead}, {Matteuccia
         struthiopteris}, {Pteretis struthiopteris}, {Onoclea
         struthiopteris}]