The clay content is slightly less than in the upper part. The BC and C horizons have hue of 10YR, 2.5Y or 5Y, values of 5 through 7 and 4 through 6 moist, and chroma of 2 through 4. The BC horizon is silty clay or silty clay loam and the C horizon is silty clay loam or silt loam. The BC and C horizons have iron stains in the matrix with hue of 10YR or 7.5YR, value of 5 or 6 and 4 or 5 moist, chroma of 1 through 8 in some pedons. Some pedons do not contain BC horizons.
Reaction is neutal through moderately alkaline.
These are the Detroit , Ladysmith , Lane , Onita , Rago , Smolan and Sponiker series in the same family, and the Butler , Hastings , Irwin , Lubbock , Sharpsburg , Tully , and Wymore series. The Detroit soils contain less clay in the argillic horizons and formed in alluvium. Ladysmith soils have darker colored Bt horizons. Lane soils have lime higher in the profile. Onita soils have formed in alluvium.