Dirinaria confusa is a species of fungus[2] within the family Caliciaceae, belonging to the order Caliciales in the class Lecanoromycetes of the division Ascomycota.

The lobes display a pinnate or subpinnate lobate structure, spreading out and merging, typically flat or convex but occasionally concave towards the tips, measuring between 0.2 and 3 mm wide.

There are no visible soralia, isidia, or polysidiangia, but distinctive pseudocyphellae are evident, primarily located on the edges and surface, occasionally forming interconnected patterns.

[3] Spot tests conducted on the upper cortex indicate K+ yellow, C-, KC-, P+ yellow reactions, whereas the medulla tests negative for K, C, KC, and P. The secondary metabolites identified include atranorin in the upper cortex, with sekikaic acid as the major compound, along with minor amounts of ramalinolic acid, and a few terpenes present in low concentrations in the medulla.

Its distribution spans tropical and subtropical areas of North, Central, and South America, with notable occurrences in Texas.