United States, Texas, Pecos, W side of road from N gate, 500 ft. SW of that gate, ca. 0.6-0.7 airmiles NNW of St. Rt. 18 bridge over Diamond Y Draw. Diamond Y Spring Preserve. Diamond Y Spring Quadrangle.
31.04967 -102.88906
Rare in rather sparse herbaceous vegetation on shallow gravelly clay on flat benches on limestone upland. Associates include Acleisanthes wrightii, Portulaca pilosa, Tiquilia canescens.