Aliciella formosa is a species of flowering plant in the phlox family known by the common name Aztec gilia. It is endemic to New Mexico in the United States, where it is known only from San Juan County. This perennial herb grows up to 30 centimeters tall, with several erect stems. It sometimes develops a woody base. The sharp-pointed, glandular leaves are up to 2.5 centimeters in length. The flowers are trumpet-shaped and may exceed two centimeters in length. They are pinkish purple in color and bloom in April and May.