After the 2005 levee failures I noticed that the lichen on the oak trees had died at the flood line. Time has passed, the water stains and spray paint Xs are gradually disappearing. But the lichen ...

Lichen planus, particularly in its oral form, is associated with a small increased risk of developing oral cancer. Lichen planus is a chronic condition that affects the skin and mucous membranes, ...

Lichen planus is a frustrating and uncomfortable skin condition, but with the right treatments and lifestyle changes, you can manage its symptoms and reduce the risk of it spreading. Lichen planus is ...

As increasingly hot and severe wildfires scorch the West, some lichen communities integral to conifer forests aren't returning, even years after the flames have been extinguished, according to a study ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. As global ...

Portland, we’ve really taken a lichen to you. That’s why Ira Flatow is coming to the World Forestry Center for a day full of the fuzzy growths on trees, roofs and gravestones. Join Science Friday and ...

Lichens are mostly unaffected by low-severity fires. In severely burned areas, nearly all the lichen were gone, even 16 years after a fire. As increasingly hot and severe wildfires scorch the West, ...