silvery spleenwort
n 1: fern with elongate silvery outgrowths enclosing the
developing spores [syn: {silvery spleenwort}, {Deparia
acrostichoides}, {Athyrium thelypteroides}]
2: North American fern with narrow fronds on yellowish
leafstalks [syn: {silvery spleenwort}, {glade fern}, {narrow-
leaved spleenwort}, {Athyrium pycnocarpon}, {Diplazium
pycnocarpon}]