While it is true that all of the known Pogonomyrmex anzensis habitat is located on very steep, dry, rocky slopes, there are plants to provide seeds and other material for these harvester ants. In this image, taken in Anza-Borrego Desert State Park, CA, large shrubs of creosote bush (Larrea tridentata) and brittlebush (Encelia farinosa) are abundant. At one location in the park (Pegleg monument area), we observed P.anzensis workers retrieving brittlebush seeds. At some locations, Ocotillo (Fouquieria splendens) is also present. In addition, there are a variety of annuals that can flourish on these slopes if precipitation is adequate (R.Snelling,G.Snelling,Schmidt,Cover 2009).

[IMAGE - P.anzensis habitat, Ocotillo Wells V.R.A., California USA - large flat-topped boulder at center is approx. 1.4 m / 4.5 ft in width]

Pogonomyrmex anzensis habitat.