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Ochrolechia pallescens is a crustose lichen species characterized by its pale, whitish to cream-colored thallus that forms thin, smooth crusts on substrates. This lichen plays an important ecological role as a pioneer species in harsh environments and contributes to soil formation and nutrient cycling in its ecosystems.

Ochrolechia pallescens typically grows on acidic rock surfaces, particularly on siliceous stones and boulders in exposed montane and subalpine environments. The species is often found on weathered granite, quartzite, and similar hard rock substrates in areas with clean air and minimal human disturbance.