United States, Texas, Pecos, W side of main road on W side of Diamond Y Draw, ca. 0.5-0.6 airmiles W of bridge on St. Rt. 18, 3.1-3.2 airmiles NNE of Diamond Y Spring. Diamond Y Spring Preserve. Diamond Y Spring Quadrangle.
31.03933 -102.89556
Rare among medium-stature shrubs on top of rocky E-facing limestone slope. Associates include Berberis trifoliolata, Dalea formosa, Diospyros texana, Larrea tridentata, Leucophyllum minus, Parthenium incanum, Prosopis glandulosa, Rhus microphylla, Yucca treculeana.