Xanthoparmelia nortegeta is a species of saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae,[2] described by John Elix in 2003.

The upper surface is yellow-green, becoming flat to weakly convex as it matures, and remains smooth and unmarked by reproductive structures such as isidia or soredia.

The medulla is white, and the lower surface is smooth and jet-black with sparse, simple to occasionally branched, black rhizines.

[1] Reproductive structures include scattered apothecia (fruiting bodies) that are sessile to somewhat stipitate, with a shiny dark brown disc measuring 0.5 to 1.0 mm wide.

[1] Chemically, the lichen does not react to potassium hydroxide solution (the K spot test) on the cortex but shows a yellow then red reaction in the medulla.