Synonyms for Silvery Spleenwort (same or very similar meaning)
WordNet sense 1 (fern with elongate silvery outgrowths enclosing the developing spores):
Athyrium thelypteroides, Deparia acrostichoides
WordNet sense 2 (North American fern with narrow fronds on yellowish leafstalks):
Athyrium pycnocarpon, Diplazium pycnocarpon, glade fern, narrow-leaved spleenwort
From the ODE community, based on WordNet
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