Notably, the lower surface of this lichen lacks a cortex, and is instead overlaid with a cotton-woolly layer of hyphae that is steeped in yellow to orange-brown pigments.

In certain species, the texture is arachnoid, and it is not uncommon for black marginal rhizines to be present, either in a simple (unbranched) form or exhibiting squarrosely branched patterns.

The chemistry of Klauskalbia is also worth noting; the cortex reacts K+ (yellow), and the genus contains specific substances like atranorin and zeorin.

The species Klauskalbia flabellata has a widespread distribution, including regions like Australia, parts of America, Africa, Asia, and even Fiji, making it potentially the most prevalent of the four.

Conversely, Klauskalbia obscurata is frequently found across continents like North, Central and South America, Africa, Asia, Australia, possibly Europe, and New Zealand.