United States, Texas, Matagorda, Both sides of road to HQ of Mad Island Marsh Preserve (TNC) ca. 0.2 mi. SW of jct. with preserve's main road, ca. 1.6 airmiles NE of HQ. Palacios NE Quadrangle.
28.66283 -96.09
Common in heavily grazed coastal prairie pasture on tight sandy loam, on level terrain underlain by Beaumont Formation. Associates include Iva angustifolia, and Ambrosia psilostachya.