Sida20: 1418, fig. 1, 2. 2003
Phenology: Flowering Apr–Jul.
Habitat: Sulphur streams, tinajas
Elevation: 1400–1500 m
Of conservation concern.
Arida mattturneri is recognized by its basal rosettes of 2-pinnatifid leaves, dense glandular pubescence on stems, leaves, and phyllaries, lavender ray florets, and epappose ray cypselae. The type locality is Blumberg Canyon, Presidio County. Turner and Nesom suggested that A. mattturneri may be related to A. turneri, which also has 2-pinnatifid proximal leaves, or to A. parviflora, which is perennial and sometimes also has epappose ray cypselae but smaller heads.