United States, Texas, Jim Wells, Near S end of N-S runway at Naval Auxiliary Landing Field Orange Grove, 50-500 ft. W of eastern perimeter fence, ca. 2.4-2.5 airmiles E to ESE of jct. US Rt. 281 and Co. Rd. 220, at N27o52'50.8", W098o02'52.1". San Diego NE Quadrangle.
27.88078 -98.04781
Locally common in cracked clay in dry bed of seasonal pond in wet-weather stream (El Caro Creek) between very gentle slopes underlain by calcareous sandstone of the Lissie Formation. Associates include Ammoselinum butleri, Stachys crenata, Glinus radiatus, Helenium elegans, Teucrium cubense, Phyla nodiflora, Heliotropium procumbens, Nama sp.