bladder fern
noun
any of several ferns of the genus Cystopteris, having pinnate leaves and growing in rocky areas.
Origin of bladder fern
First recorded in 1820–30; so called from the bladderlike indusium
Words nearby bladder fern
blackwork,
blacky,
blad,
bladder,
bladder campion,
bladder fern,
bladder kelp,
bladder ketmia,
bladder senna,
bladder worm,
bladder wrack
British Dictionary definitions for bladder fern
bladder fern
noun
a small fern, Cystoperis fragilis, with graceful lanceolate leaves, typically growing on limestone rocks and walls
Word Origin for bladder fern
C19: named from the bladder-shaped indusium