| silvery spleenwort | (n) fern with elongate silvery outgrowths enclosing the developing spores, Syn. Deparia acrostichoides, Athyrium thelypteroides |
| silvery spleenwort | (n) North American fern with narrow fronds on yellowish leafstalks, Syn. glade fern, narrow-leaved spleenwort, Diplazium pycnocarpon, Athyrium pycnocarpon |