Definition of bladder fern in English:

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bladder fern

noun

A small delicate fern with rounded spore cases, growing on rocks and walls. Bladder ferns are native to both Eurasia and North America. Also called brittle fern.
  • Genus Cystopteris, family Dryopteridaceae: several species
Example sentences
  • Bulbet bladder fern, brittle bladder fern, and slender cliff brake grow among the outcrops here.
  • Berry bladder ferns and columbine thrive in shaded parts, while baby lip fern and shad bush bask on sunny rock faces.
  • More than 30 species of ferns have been identified here, including hay-scented, New York and bladder ferns.
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