There are no competing series in the same family. Similar soils are the Catarina , Duvert , Gareno, Viboras , and Verick series. These are the Brundage , Catarina , Chacon , Garceno , Montell , Pryor , and Verick series. All of these soils, except Verick soils, occur on lower positions in the landscape. These soils occur on lower landscape positions.
Permeability is slow.
Runoff is low on slopes less than 1 percent, medium on 1 to 5 percent slopes and high on 5 to 10 percent slopes. The grasses consist of a sparse cover of curlymesquite, hairy tridens, tobosa, red grama, and threeawn. Woody vegetation is mostly scrubby mesquite, blackbrush, guayacan, and twisted acacia. Maverick County, Texas, 1911. Classification change from Ustollic Camborthids to Aridic Haplustepts based on geographic distribution of the series, rainfall patterns, and vegetative production and composition.