"Dark ferrisol" is a term used to describe soils with a dark, almost black coloration. This type of soil is rich in organic matter and is commonly found in wetlands and areas with high rainfall. Synonyms for dark ferrisol include "humic soil," "peaty soil," "black earth," and "muck soil." Additionally, dark ferrisol may be referred to as "bog soil," "marsh soil," or "swamp soil" depending on the specific location where it is found. These synonyms for dark ferrisol can be used interchangeably to describe this unique type of soil and are useful for soil scientists, farmers, and anyone interested in the study of soils and plant growth.