Highly weathered, would be found in a tropical rainforest

Coarse-textured, acid parent materials, would be found under a coniferous forest

Clay accumulation, found in warm to tropical climates, such as Georgia

Found in cool to hot humid areas, often develop under native deciduous forests

Has a humus-rich surface horizon, forms under prairie grasses

Goes through periods of drying and wetting, shrink-swell clays

Water deficiency is a major characteristic, is usually alkaline

One or more thick layers of organic soil material, ranges from peat to muck

Found in cold temperatures for much of the year, little profile development

Usually formed on volcanic ash and cinders

Beginning of a B horizon, little other profile development

Very little profile development, extremely diverse group of soils