'silvery spleenwort' definitions:

noun

Fern with elongate silvery outgrowths enclosing the developing spores [syn: silvery spleenwort, Deparia acrostichoides, Athyrium thelypteroides]

noun

North American fern with narrow fronds on yellowish leafstalks [syn: silvery spleenwort, glade fern, narrow- leaved spleenwort, Athyrium pycnocarpon, Diplazium pycnocarpon]