https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/4033764![Parmotrema praesorediosum, Leafy Lichen on 3-in-1 Trail](https://images.rawpixel.com/image_social_landscape/czNmcy1wcml2YXRlL3Jhd3BpeGVsX2ltYWdlcy93ZWJzaXRlX2NvbnRlbnQvbHIvZmw0OTg2NzczNTE2Ni1pbWFnZS1rdTJmbzdubC1rdTJmdnd2Mi5qcGc.jpg)
![Parmotrema praesorediosum, Leafy Lichen on 3-in-1 Trail](https://images.rawpixel.com/image_social_landscape/czNmcy1wcml2YXRlL3Jhd3BpeGVsX2ltYWdlcy93ZWJzaXRlX2NvbnRlbnQvbHIvZmw0OTg2NzczNTE2Ni1pbWFnZS1rdTJmbzdubC1rdTJmdnd2Mi5qcGc.jpg)
Parmotrema praesorediosum, Leafy Lichen on 3-in-1 Trail
Parmotrema praesorediosum, Leafy Lichen on 3-in-1 Trail
NPS Photo by Patty Palma. Original public domain image from Flickr
Public DomainFree CCO U.S. Government image for Personal and Business use