These include the competing Amistad, Ector, Jimenez, Kavett and Olmos series, as well as the Dev, Elindio, Felipe, Lozier and Valverde series. Dev and Elindio soils are over 20 inches deep and occur at lower elevation in alluvial sediments. Lozier soils occur in similar positions and lack mollic epipedons and petrocalcic horizons. Valverde soils occur in similar positions and are over 20 inches deep, and lack mollic epiedons. Felipe soils are formed over shaly clay and occur on the steeper slopes and breaks at lower or higher elevations.
Native vegetation is short and mid-grasses with some desertic shrubs.
Grasses are mainly gramas, tridens or threeawns. Woody plants are mainly blackbrush, agarito, condalias, pricklypear, guayacan, and guajillo. Mainly in the southwestern part of the Edwards Plateau and probably considerable acreage in Mexico. The series is of moderate extent. These soils were formerly included as part of the Ector series and were formerly classified as Lithosols.