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Thelypteris palustris

Common nameMarsh fern
Thelypteris palustris Marsh fern
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Natural History Museum
Latin names
ClassPteridopsida
OrderPolypodiales
FamilyThelypteridaceae
GenusThelypteris
Speciespalustris
Geographic details
Habitatwetlands
DistributionThroughout British Isles
NativeYes
General
Plant heightmedium
BranchedNo
Plant colourlight green
Habitupright lvs at intervals
Conservation statusthreatened by land drainage
Leaf details
Separate fertile leavesYes
Fertile leaf shapelanceolate
Sterile leaf shapelanceolate,narrow pinnae
Pinnae1-pinnate-pinnatisect
WintergreenNo
Spore details
homosporeYes
Rhizome details
Rhizome descriptionslender branching
Rhizome scalesbroadly triangular acute apex
Rhizome positioncreeping
Sori details
Sori shaperound
Sori placementmid-way segment and margin
Indusium details
indusium presentYes
indus_shaperound-oblong
indusium descriptionsmall delicate; margin irregular