"Also known as the green dog lichen, the common freckle pelt lichen (Peltigera aphthosa) is closely related and looks very similar to its coastal cousin, the freckle pelt lichen (Peltigera britannica) except that there are minor, small physiological differences in the brown/black ""freckles"" and that this one is not found in coastal environments. It is found commonly throughout the Northern hemisphere at alpine elevations, such as this one that was found in the Cascade Mountains east of Greenwater, Washington in Pierce County. This one shows the reddish-brown apothecia, the reproductive structures that form on the end of its ""leaves""."
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