Dryopteris expansa

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Dryopteris expansa (C. Presl) Fraser-Jenkins & Jermy

Kingdom	Plantae	Plants, but not fungi, lichens, or algae
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Pteridophyta	Ferns
Class	Filicopsida	“Leptosporangiate” (has to do with how their spores form) ferns—includes most ferns
Order	Polypodiales	Polypod ferns
Family	Dryopteridaceae	Wood ferns (about 70% of the ferns)
Genus	Dryopteris	From Greek dryas, “oak,” and pteris, “fern,” in reference to the presence of some species of wood ferns in woodland areas populated with oaks
Species	expansa

[An article has not been written yet.]

Dryopteris assimilis S. Walker

Dryopteris dilatata auct. non (Hoffm.) A. Gray

Dryopteris dilatata (Hoffm.) A. Gray ssp. americana (Fisch.) Hultén

Dryopteris spinulosa (O.F. Müll.) Watt var. dilatata auct. non (Hoffm.) Underw.

Dryopteris expansa description by Thomas H. Kent, last updated 28 Jul 2023.

9/22/2023 · Goodell Brook Falls, Monson, Maine · ≈ 10 × 6″ (24 × 16 cm)

Range: