What is a marshy fen?

A marshy fen is a type of wetland that forms when water accumulates due to poor drainage. It is typically found in temperate climates, where there is a cool climate and high precipitation. Marshy fens are characterized by a dense growth of sedges, rushes, and other water-loving plants. The water in these wetlands is often shallow and the soil is usually peaty. Marshy fens are important habitats for many species of wildlife, including birds, amphibians, and reptiles. They also play a role in regulating water flow and protecting water quality.