Niebla fimbriata is a fruticose lichen that grows on volcanic rocks in the Channel Islands of California and along the foggy Pacific Coast of Baja California from near San Antonio del Mar south to Arroyo Sauces, which is located south of Punta Canoas.

Black dot-like pycnidia are scattered and immersed along the margins and cortical ridges, or they may be conspicuous and abundant in some thalli.

[1] This area is just north of Punta Colonet, not between Ensenada and Tijuana where there has been active Real Estate development.

Niebla fimbriata was first recognized in Baja California as a result of pursuing a lichen flora of that region; the type (biology) specimen was collected from San Antonio del Mar, 13 April 1990.

[1] A third variant that occurs near Punta Canoas is notably different in the branches densely covered with short isidia-like branchlets.