Xanthoparmelia mexicana, commonly known as the salted rock-shield,[2] is a foliose lichen in the family Parmeliaceae.

It grows in 4–10 cm diameter rosettes of gray-green to yellow-green lobes in arid climates all over the world.

[3] It was one of 93 species that was transferred to Xanthoparmelia when Mason Hale promoted that taxon from subgeneric to generic status in 1974.

[2] Xanthoparmelia mexicana grows in 4–10 centimetres (1.6–3.9 in) diameter rosettes consisting of small lobes.

[5] Apothecia are uncommon; when present, they are cinnamon to dark-brown colored discs with smooth margins, and no pruina.