The lichen was first formally described as a new species in 1944 by Finnish lichenologist Veli Räsänen as Xanthoria hasseana.

[4] Sergey Kondratyuk and Ingvar Kärnefelt proposed a transfer to genus Oxneria in 2003.

[7] The lichen has a yellowish-orange thallus comprising small, overlapping lobes (measuring 0.3–0.9 mm wide) arranged in a loosely attached rosette.

Apothecia, usually numerous in the center of the thallus, have dark orange discs and are 0.6–3 mm in diameter.

Ascospores are ellipsoid in shape with a single septum, and have typical dimensions of 15.5–18 by 7.5–9.5 μm.