1970's desert oil painting attributed to Texas artist Dalhart Windberg

Unsigned (or covered by the frame) but attributed the American artist Dalhart Windberg, who was born in Texas in 1933. Windberg is known for his landscape and still-life oil paintings. He developed a technique called the "smooth surface technique" to speed up the oil painting process while maintaining the look of classic oil pieces. He often depicts Texas landscapes, including yucca. 13.5" x 8". In excellent condition. Found at a local estate sale.