Lichens can help retain moisture on tree bark. Their structure allows them to capture and hold water, which benefits trees, especially in arid or drought-prone regions.

This is an abundant and conspicuous lichen found on hardwood tree trunks everywhere around here. It is large, usually somewhat circular, and has a distinctive yellowish-green color (when wet ...

Those green-blue growths that you see on tree trunks and branches are not mosses. They are lichens. Lichens are not killing your tree, nor are they causing it to fail. They are telling you ...

Have you ever paused beneath a towering oak or maple and wondered if that rough, gnarled bark is hiding secrets? What if I told you ... Read more The post What Tree Bark Can Tell You About Local ...

Have you ever noticed the strange, colorful splotches clinging to rocks, tree bark, or even old fences after a rainy day?

Q. My 20-something-old redbud tree has developed lichens on the trunk, which is a first. Do I have a problem and is there anything I should do? I have another one in the yard which doesn’t have ...

Studies of lichens and mosses on tree trunks are best in winter, while spring reveals more species Melting snow reveals lichens and mosses on tree bases and roots, says Bob Bowles. By Robert (Bob) ...

A: Lichen can occur in a range of colors, but you are correct, this is not lichen, nor is it tree sap or insect eggs; the flat patches, flush with the bark or just below bark level, indicate ...

A beginner’s guide to the amazing world of lichens, the pollution monitors and the beauty makers of the winter landscape. Why lichens are more than just a splash of green on tree trunks: Nature News ...

When we see something weird growing on tree bark, it is usually algae, lichens, moss, or fungi (or a combination of these). These can be gray, white, green, or even orange.