Thelypteris palustris gallery
Marsh Fern Gallery
Young fronds
Myles Standish Forest, MA
by Maria Pavlova on 06/14/2015
Dichotomous venation
Nescopeck State Park (Luzerne Co)
by George Chamuris on 06/24/2023
Mature fronds with sori
Weiser State Forest (Columbia Co)
by George Chamuris on 09/04/2020
Undersurface of frond showing sori and revolute margins
Weiser State Forest (Columbia Co)
by George Chamuris on 09/05/2020
Lower pinnae
Greenwood Furnace (Huntingdon Co)
by Maria Pavlova on 09/10/2023
Adult frond
Greenwood Furnace (Huntingdon Co)
by Maria Pavlova on 09/10/2023
Withering frond
