The organic materials are derived primarily from herbaceous plants, but some layers contain material of woody origin. The Op horizon has hue of 10YR or is neutral, value of 2 to 3, and chroma of 0 to 2. Reaction ranges from slightly acid to neutral. Some pedons do not have an Op horizon. The Oa horizon has hue of 10YR or are neutral, value of 2 to 3, and chroma of 0 to 3.
Reaction ranges from slightly acid to neutral.
The Cg horizon has hue of 10YR or 2.5YR, value of 4 to 6, and chroma of 1 or 2. It is sand, coarse sand, fine sand and loamy sand and their gravelly analogues. Rock fragment content ranges from 0 to 25 percent. Reaction ranges from neutral to moderately alkaline. These are the Ackerman and Scarboro series in the same family and the similar Henrietta series.