Thelypteris Schmidel. Common name: Marsh Fern.
A genus of 2 species, perennial herbs, circumboreal in distribution (with several varieties) and also with a Southern Hemisphere member. Thelypteris was often in the past considered a large genus (with about 1190 species), clearly warranting segregation; Fawcett & Smith (2021) presented a comprehensive treatment for the family which recognizes smaller genera, as reflected in this treatment.
ID notes: In the northern and/or or more montane parts of our region, Coryphoteris simulata is similar to and can be mistaken for Thelypteris palustris var. pubescens; see Coryphopteris for identification notes.
References: Fawcett & Smith (2021); He & Zhang (2012); Lin et al. (2013); PPG I (2016); Smith (1981); Smith (1993a) In Flora of North America Editorial Committee (1993b); Smith & Flory (1990). Show full citations.
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© Erik Danielson | Thelypteris palustris var. pubescens source | Original Image ⭷
© Alan Cressler: Thelypteris palustris var. pubescens, Hurricane Creek Outlet Bog, Upper Nantahala River, Nantahala National Forest, Macon County, North Carolina 3 by Alan Cressler | Thelypteris palustris var. pubescens source | Original Image ⭷
© Alan Cressler: Thelypteris palustris var, pubescens, Deep Spring run, Whitfield County, Georgia 2 by Alan Cressler | Thelypteris palustris var. pubescens source | Original Image ⭷Feedback
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