The species epithet honours the German lichenologist Robert Lücking for his contributions to the knowledge of the lichen flora in Costa Rica.

The thallus, or body of the lichen, spans 5–10 cm (2.0–3.9 in) in width and is loosely attached to its substrate, not having a leathery texture.

[2] The upper surface of the thallus is greenish-yellow and slightly shiny, without any powdery coating (epruinose) or distinct spots (immaculate).

It lacks reproductive structures like soredia, isidia, pustules, dactyls, or lobules, and its upper cortex remains intact.

The rhizines (root-like structures that attach the lichen to the substrate) are black and fairly dense, sometimes forming a fringe around the edges.