bladder fern   (TTS Sound)

The bladder_fern has 1 Senses.

• bladder fern
• any fern of the genus Cystopteris characterized by a hooded indusium or bladderlike membrane covering the sori
• 胞子嚢群を覆う皮をかぶった包膜または嚢のような膜によって特徴づけられるナヨシダ属のシダ