A marshy tract is a type of wetland that is characterized by low-lying, waterlogged land. The crossword solutions for this term are FEN (3 letters), SWAMP (5 letters), MORASS (6 letters), SWALE (5 letters), BAYOU (5 letters), and MOOR (4 letters). A FEN is a type of wetland that is fed by groundwater or surface water and is characterized by neutral or alkaline water. A SWAMP is a type of wetland that is characterized by slow-moving water and is often heavily forested. A MORASS is a type of wetland that is characterized by deep mud and stagnant water. A swale is a type of wetland that is characterized by shallow, marshy land. A BAYOU is a type of wetland that is characterized by slow-moving water and is often heavily vegetated. A MOOR is a type of wetland that is characterized by acidic, peaty soil and is often covered in heather.