Gypsiferous soils are extensive in the mid and northern portions of the Tularosa Basin of southern New Mexico. Factors such as landform, percent gypsum, depth to gypsum, and gypsum form can affect vegetation. Plant communities associated with these factors will be examined. Landforms containing gypsiferous soils on White Sands Missile Range vary from Pleistocene lake shorelines and relict lakebeds, to stabilized gypsum sand mounds; to complex gypsiferous drainageways below limestone hills overlying gypsum parent material, and a variety of both active and stabilized gypsum dunes. The amount of gypsum and the depth at which it occurs in the soils can range from only minor amounts occurring two to three feet below the surface to nearly 100 percent throughout the soil profile. The form gypsum can occur in can vary from hard indurated petrogypsic horizons to soft flour-like gypsum. The combination of these factors ultimately determines plant community composition. New ecological sites are being developed to accommodate this diverse land area. However, additional research and documentation is needed to better define these soil-landscape-plant community relationships.