Xanthoparmelia arida is a lichen which belongs to the Xanthoparmelia genus. It is an arid shield lichen, and is uncommon. It is listed as apparently secure by the Nature Conservatory. It is noted for being similar to Xanthoparmelia joranadia.
This lichen grows to around 3âÂÂ8 cm in diameter, with broad, dull, yellow-green, sub-irregular lobes that extend 1âÂÂ3 mm wide. The underside is pale brown with simple rhizines approximately 0.3-0.6 mm long.
It is found in the North American southwest, particularly in the state of Texas.
Xanthoparmelia arida has been recorded as containing both lecanoric and usnic acids.