The texture is clay loam, clay, silty clay loam, or silty clay. Reaction is very strongly acid to neutral in the upper part and ranges to slightly alkaline in the lower part. The 2BCg or 2Cg horizon, where present within 80 inches, has hue of 10YR, 7.5YR, 2.5Y, 5Y, or is neutral, value of 4 to 6, and chroma of 0 to 6. It is clay loam, clay, or loam. Rock fragment content ranges from 2 to 15 percent.
Reaction is slightly acid to slightly alkaline.
These are the Ashgrove , Bluford , Hurst , and Kernan series. Ashgrove soils average more than 45 percent clay in the upper 20 inches of the argillic horizon. Bluford soils have a 2Btx horizon and formed in 30 to 45 inches of loess and the underlying pedisediment. Hurst soils typically have less sand, average less than 2 percent rock fragments, and formed mainly in lacustrine sediments. Kernan soils average less than 10 percent sand in the particle size control section and formed in 35 to 55 inches of loess and the underlying lacustrine sediments.