The 2Bkss or Bkssy horizons have hue of 10YR, value of 2 to 4 and chroma of 2 or less. Calcium carbonate in the form of masses, concretions and threads range from few to common. Reaction is slightly alkaline or moderately alkaline. A C horizon occurs at depths of less than 80 inches in some pedons and have hue of 10YR or 2.5Y, value of 4 to 7, and chroma of 2 or 3. Some pedons have a few yellowish, brownish, or reddish mottles.
Texture is sandy clay, sandy clay loam, clay loam or silty clay loam.
Reaction is slightly alkaline or moderately alkaline. These are the Francitas series in the same family, and the similar Aransas , Navaca , Pledger , Tinn and Trinity series. Francitas soils are on uplands and are saline. Aransas soils do not have intersecting slickensides. Navaca, Pledger, Tinn and Trinity soils have mean annual soil temperatures of less than 72 degrees F. Navaca soils also have a contrasting loamy horizon at depths of 24 to 36 inches.