My tree has lost all its leaves and the bark now has some fungi growing on it? Is lichen killing my tree? Lichen (pronounced lie-ken) gets a bad rap based on its appearance alone. It has been on our ...

I know many of us want winter to come to an end, but I would like just one more good snowstorm. I love all seasons, but I need a little more of that winter bleakness in the woods, primarily to help me ...

I answer a lot of questions from home gardeners on our Garden Hotline. Quite a few questions deal with lichens. The resident asks, “Are they killing my tree?” Lichens (pronounced lie-kenz) have been ...

Now that the majority of our deciduous plants have dropped their leaves, you may notice gray growths on the trunks of some trees and shrubs in your landscape. Most likely, these are lichens, which, ...

Lichen is everywhere. It grows on sidewalks, rocks, trees, roofs and in frigid tundras, arid deserts and even contaminated environments. You just have to look for it, says lichenologist and Eastern ...

As the early morning sunlight lasers over the horizon, autumn tumbles in amid flurries of fluttering leaves, glowing golden, orange-y, and scarlet. Fall has arrived, yet the weather remains quite warm ...

What could possibly be inspiring about that green stuff covering Oregon’s trees? What could possibly be inspiring about that green stuff covering Oregon’s trees? Lichen is a an ecological wonder that ...

Rare lichens have been found thriving across a valley thanks to traditional farming practices. A lichen survey carried out at ...

Why devote a decade to documenting the lichens of Great Smoky Mountains National Park? After nearly 100 years of study, the consensus by the 21st century was that the lichens of the Smokies were a ...