Thanks for that link, Myriam. Based on the info there, I'd rather think it was Erigeron modestus instead. It's been a wet spring, but normally it is much drier here. This description "gravelly or rocky calcareous soils in open areas and hillsides in North Central and western Texas" from the webpage fits where it grows near me and my own location. I mostly only see it growing where there is limestone outcropping in the terrain. Really thin, poor, and usually, gravelly soil. It doesn't seem to thrive well in the red clay/gravel above the outcropping nor the river bottom land below it. Looking at the Erigeron family there seem to be a lot that have similar blooms.
