| 释义 |
ostrich fern
noun
: a tall fern of the genus Pteretis (P. struthiopteris) of the north temperate zone that has graceful arched bipinnatifid fronds growing in a circle from an erect rootstock and pinnate sporophylls having segments like a necklace and resembling ostrich plumes; broadly : any fern of the genus Pteretis |