Definition of bladder fern in English:

bladder fern


  • A small, delicate fern with rounded spore cases, growing on rocks and walls in both Eurasia and North America.

    Genus Cystopteris, family Woodsiaceae: several species

    • ‘Berry bladder ferns and columbine thrive in shaded parts, while baby lip fern and shad bush bask on sunny rock faces.’
    • ‘Bulbet bladder fern, brittle bladder fern, and slender cliff brake grow among the outcrops here.’
    • ‘More than 30 species of ferns have been identified here, including hay-scented, New York and bladder ferns.’