silvery spleenwort
noun
1 silvery spleenwort
Fern with elongate silvery outgrowths enclosing the developing spores.
synonyms: Athyrium thelypteroides, Deparia acrostichoides.
2 silvery spleenwort
North American fern with narrow fronds on yellowish leafstalks.
synonyms: Athyrium pycnocarpon, Diplazium pycnocarpon, glade fern, narrow-leaved spleenwort.
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