[a][3][4] It exhibits a crustose growth type and is commonly found on well-lit, smooth bark, and worked timber surfaces.

When newly collected, they exhibit a greenish-grey coloration, which fades to a pale yellowish-grey hue as they age in storage.

[5] Initially, the apothecia are attached directly to the substrate (sessile) and appear flat with a distinct raised margin.

Spot tests reveal that the thallus and medulla turn K+ yellow, indicating the presence of certain chemical compounds.

[3] Buellia griseovirens is distributed in Europe, Mediterranean Africa, the Middle East, and North America, including montane areas of southern California (Riverside and Los Angeles Counties).

In Canada, it is found in Alberta, British Columbia, Nova Scotia, Ontario, and the Yukon Territory.