Candelariella efflorescens, commonly known as the powdery goldfleck lichen,[1] is a species of lichen in the family Candelariaceae.

Found in North America, it was formally described as a new species in 1978 by Richard C. Harris and William R. Buck.

The type specimen was collected by the second author from Hog Island Point State Forest Campground (Michigan, USA); here, at the edge of a swamp, it was found growing on Populus balsamifera.

The lichen has a temperate eastern North American distribution.

Although it occurs most frequently on bark (usually from deciduous trees), it has also occasionally been recorded growing on wood.