United States, Texas, Starr, Near gate on W side of F. M. 3167 at a point 7.6 roadmiles N of its jct. with US Rt. 83 at Rio Grande City. Las Estrellas Preserve. Rio Grande City North Quadrangle.
26.47592 -98.86897
Common in mix of Varilla texana - Ziziphus obtusifolius shrubland on somewhat saline clay soils of the Catarina Series, on valley flat between gravelly slopes underlain by Jackson Group. Woody associates include Bouteloua trifida, Desmanthus sp., Hilaria belangeri, Setaria macrostachya, Sporobolus pyramidatus, S. wrightii, Opuntia leptocaulis, O, lindheimeri, Prosopis glandulosa, Varilla texana, Ziziphus obtusifolius.