United States, Texas, Cameron, E of Southmost Ranch Preserve HQ, 1.2 airmiles SW of jct. F. M. 3088 (Indiana Ave.) and F. M. 1419. Southmost Quadrangle.
25.85408 -97.39003
Weed at edge of cultivated field on clay soils of upland between old river channels, just S of flood control levee.