1. chiefly small perennial rock ferns: bladder ferns; in some classifications placed in Polypodiaceae; [syn: Cystopteris, genus Cystopteris]
WordNet (r) 3.0 (2006):
genus Cystopteris
n 1: chiefly small perennial rock ferns: bladder ferns; in some
classifications placed in Polypodiaceae [syn:
Cystopteris, genus Cystopteris]