Most ferns need humid surrounding to feel at ease and the Marsh Fern (Thelypteris palustris) still more than most other ferns. This beautiful plant is rather uncommon, probably because its prefered habitats, marshlands and wetlands, get more and more scarce.
Here it grows in a wet meadow besides a small stream, nearly hidden between Irises and Sedges. Its roots spread and its fronds grow everywhere.
They are a beautiful tender green and subtly pinnate.
Fertile fronds are somewhat larger. Edges of the pinnules are curled around masses of dark spores.
No, a bit of an inundation is not a problem. In spring, when all streams and ponds overflow, its new fronds just go on unfirling towards the light.