One of my favorite roadside flowers of the Texas Hill Country. Grows in disturbed soils in the most miserable locations and defies any attempt to cultivate it in your yard!!
On USDA Plants they have Centaurium arizonicum listed as native to this area and growing in the same habitat, riparian desert, this name is not showing up as an option in iNaturalist.
One stigma with 2 lobes;
Found on downslope of serpentine section of fire road
D. Smith, V. Smith, M. Garcia, J. Doyle
Photos taken by Vernon Smith