Species › Plants › Marsh Fern

Marsh Fern

Thelypteris palustris

CommonPlant
Illustration of Marsh Fern (Thelypteris palustris)

The Marsh Fern is a robust fern with bright green fronds that can grow up to 3 feet tall. It thrives in wetland areas and is an important component of marsh ecosystems. Its fronds die back in winter, but new growth emerges in spring, providing seasonal interest.

Habitat
Commonly found in marshes, swamps, and wet meadows.
Diet
It provides cover for amphibians and insects, and its spores are dispersed by wind.
How common
Common

Best time to see a Marsh Fern

The best time to see a Marsh Fern is May–August, when about 70% of U.S. sightings happen, based on 5,719 research-grade iNaturalist observations.

J
F
M
A
M
J
J
A
S
O
N
D

Not certain it is a Marsh Fern? What plant is this? walks through what to check first and the lookalikes that catch people out.

Recent Marsh Fern sightings near you

Live, research-grade observations from iNaturalist. Allow location to center the map on you.

Spotted a Marsh Fern?

Point Huck at any plant, bird, or animal and know for sure - plus a live map of where it is being spotted near you.

Get Huck - free
5,300+species
63national parks
50states

More plants

Marsh Hedgenettle
Marsh Hedgenettle
Stachys palustris
Marsh Horsetail
Marsh Horsetail
Equisetum palustre
Marsh Marigold
Marsh Marigold
Caltha palustris
Marsh Rattlesnakemaster
Marsh Rattlesnakemaster
Eryngium aquaticum
Marsh Vetchling
Marsh Vetchling
Lathyrus palustris
Maryland Figwort
Maryland Figwort
Scrophularia marilandica
Matilija Poppy
Matilija Poppy
Romneya coulteri
Maximilian Sunflower
Maximilian Sunflower
Helianthus maximiliani