Marsh Fern

Marsh Fern

Thelypteris palustris
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Conservation Status: LC

The Marsh Fern is classified as LC under the IUCN Red List of Threatened Species.

Quick Facts & Botanical Stats

Plant Category
Ferns & Lycophytes
Growth Habit
Perennial Fern
Primary Habitat
Freshwater marshes, coastal wetlands, and fen margins.
Average Lifespan
Perennial
Water Requirement
High
Maximum Height
30 - 90 cm
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Native Region
North America, Europe, and Asia

Species Overview

Marsh Fern is a moisture-loving wetland species that forms extensive colonies in marshy soils.

Physical Appearance & Anatomy

Pale green, delicate pinnate fronds growing upright from thin creeping rhizomes.

Habitat & Growth Behavior

Spreads rapidly across saturated organic mud and peat.

Ecological Role & Symbioses

Stabilizes wetland soil beds and provides habitat for waterfowl.

Reproduction, Lifecycle & Propagation

Fertile fronds produce linear spore sori along rolled leaflet margins.

Conservation Status & Environmental Threats

Threatened by wetland drainage and urban runoff.

Interesting Fun Facts

  • Its leaves roll inward along the edges to protect developing spore clusters.
  • Can survive partially submerged in water throughout wet spring months.

Related Plants

Boston Fern

Boston Fern

Least Concern
Nephrolepis exaltata

What is a Boston fern? The Boston fern (Nephrolepis exaltata 'Bostoniensis') is a popular species of fern belonging to the Lomariopsidaceae family. Native to humid, tropical woodlands and swamps, it is globally famous for its lush, arching, feathery fronds. Discovered in a shipment of ferns from Boston to Philadelphia in 1894, it became a classic Victorian houseplant. Like all ferns, it is a non-flowering vascular plant that reproduces via spores rather than seeds.

Ostrich Fern

Ostrich Fern

Least Concern
Matteuccia struthiopteris

What is an ostrich fern? The ostrich fern (Matteuccia struthiopteris) is a large crown-forming deciduous fern belonging to the Onocleaceae family. Native to temperate regions of North America and Eurasia, it is named for its large, upright, feathery green fronds that resemble ostrich feathers. Are ostrich ferns edible? Yes, the tightly coiled young fronds, known as fiddleheads, are harvested in spring and eaten as a seasonal delicacy in North America and Japan.