The Texas state flower, the lovely bluebonnet, widely covers the Hill Country each spring.
Sunflowers love our West Texas sun and heat.
Some favorite links to recommend:
Awesome photo from 1931 of sand storm about to envelop Big Spring (story by John A. Riley from the Weather Bureau, Dallas, TX; excerpted from the Monthly Weather Review; found in the archive files of the National Oceanic & Atmospheric Administration)