A2. Histic Epipedon

For use in all LRRs.

A histic epipedon underlain by mineral soil material with chroma of 2 or less.

User Notes: Most histic epipedons are surface horizons 20 cm (8 inches) or more thick of organic soil material. Aquic conditions or artificial drainage is required. See Keys to Soil Taxonomy (Soil Survey Staff, 2014) for a complete definition.