The BE horizon has clean silt grains as coatings on faces of peds. Other pedons have weakly expressed E horizons. It commonly is silty clay loam but some pedons are silty clay. Average clay content ranges from 35 and 42 percent clay, but individual subhorizons contain as much as 46 percent clay. Reaction ranges from moderately acid to neutral.
Reaction ranges from slightly acid to slightly alkaline.
These are the Bremer , Chancellor , Clarinda , Coatsburg , Crossplain , Gregory , Haig , Lodgepole , Mazaska , Minnetonka , Sampsel , Taintor , Virden , Winterset , Worthenton , and Worthing series. Bremer, Chancellor, and Worthing soils have mollic epipedons thicker than 24 inches. Clarinda, Haig, and Minnetonka soils average more than 40 percent clay in the particle size control section. Coatsburg soils average more than 10 percent sand in the control section. Crossplain and Sampsel soils have free carbonates at depths of less than 50 inches.