Bog
（重定向自Quaking bog）
![Mer Bleue Bog, a typical peat bog, in Ontario](/Images/godic/202502/05/MerBleueBog21114.jpg")
![Precipitation accumulates in many bogs forming bog pools.](/Images/godic/202502/05/Koitjärve_raba_05-20151114.jpg")
![Carnivorous plants, such as this Sarracenia purpurea pitcher plant of the eastern seaboard of North America, are often found in bogs. Capturing insects provides nitrogen and phosphorus, which are usually scarce in such conditions.](/Images/godic/202502/05/Sarracenia_purpurea_westphalia1114.jpg")
![An expanse of wet Sphagnum bog in Frontenac National Park, Quebec, Canada. Spruce trees can be seen on a forested ridge in the background.](/Images/godic/202502/05/Tourbière_03_-_Parc_de_Frontenac_-_Juillet_20081115.jpg")
A bog is a mire that accumulates peat, a deposit of dead plant material—often mosses, and in a majority of cases, sphagnum moss. It is one of the four main types of wetlands. Other names for bogs include mire, quagmire, and muskeg; alkaline mires are called fens. They are frequently covered in ericaceous shrubs rooted in the sphagnum moss and peat. The gradual accumulation of decayed plant material in a bog functions as a carbon sink.