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Definition of Athyrium pycnocarpon
1. Noun. North American fern with narrow fronds on yellowish leafstalks.
Exact synonyms: Diplazium Pycnocarpon, Glade Fern, Narrow-leaved Spleenwort, Silvery Spleenwort
Generic synonyms: Fern
Group relationships: Athyrium, Genus Athyrium
Generic synonyms: Fern
Group relationships: Athyrium, Genus Athyrium