United States, Texas, Cameron, N-S road on W side of Palmito Hill, ca. 1.7-1.8 airmiles SE of jct. Palmito Hill Rd and Boca Chica Hwy (St. Rt. 4). Palmito Hill Tract. Palmito Hill Quad.
25.94167 -97.28556
Common in disturbed saline clay on unshaded roadbed.