silvery spleenwort Meaning, Definition & Usage
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noun fern with elongate silvery outgrowths enclosing the developing spores
Deparia acrostichoides; Athyrium thelypteroides.
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noun North American fern with narrow fronds on yellowish leafstalks
narrow-leaved spleenwort; Diplazium pycnocarpon; Athyrium pycnocarpon; glade fern.
