silvery spleenwort
Noun
Meaning
North American fern with narrow fronds on yellowish leafstalks
fern with elongate silvery outgrowths enclosing the developing spores
Source: WordNetSynonyms
Athyrium pycnocarpon
Diplazium pycnocarpon
glade fern
narrow-leaved spleenwort
Athyrium thelypteroides
Deparia acrostichoides