United States, Texas, Jeff Davis, +/- 32.8 roadmiles N and W of Ft. Davis- Marfa Hwy along Hwy 166, in Davis Mountains (= to 10.1 miles W of Jct. of 166 with Kent-Ft. Davis road) basically just W of Sawtooth Mt.
30.664471 -104.245157 +-10000m.
In oak, juniper, pinyon, woodland with well developed grasses. Granite-derived soils. Plants to 3 ft. tall, densely branched, bushy, thorns very sharp.