What is the green stuff growing on my trees? - North American Tree Service
![What is the green stuff growing on my trees? - North American Tree Service](https://images.squarespace-cdn.com/content/v1/5bfed48c3c3a53a9e34e73bd/4a7e1314-77ed-4762-b13e-60770d1a98d6/tree-lichen-identification.png)
Most of the time, in damp, shady areas you will spot a substance on the branches or trunk of a seemingly declining tree. This substance can be either lichen or moss. What’s the difference between lichen and moss on trees? Lichen A combination of fungi and algae Can be a range of colors
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Common Tree Species
![](https://www.davey.com/media/4etcvlas/tree-trimming-and-pruning.jpg?cc=0.0962673392181589,0.28763869848001417,0,0.23698747417231228&width=1920&height=672&rnd=133504130008300000&format=webp&quality=45)
Tree Trimming & Pruning Services
![](https://blog.davey.com/media/rxmcve5y/lichen-on-tree-branch-davey-tree.jpg?width=351&height=235&format=webp&quality=85)
What Are These Green Spots on My Tree's Trunk or Branches?
![](https://images.immediate.co.uk/production/volatile/sites/10/2023/06/2048x1365-Oak-trees-SEO-GettyImages-90590330-b6bfe8b.jpg?quality=90&resize=940,627)
Complete Guide to Oak Trees BBC Gardeners World Magazine
![](https://static01.nyt.com/images/2021/04/04/realestate/31garden1/oakImage-1617054677967-videoSixteenByNine3000.jpg?year=2021&h=1688&w=3000&s=6d4832be2a3508c025e864400e918ce20842fac7526a4326606cde5b712e6cc8&k=ZQJBKqZ0VN&tw=1)
Why You Should Plant Oaks - The New York Times
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Tree Health Inspection Services & Treatment
![](https://www.thespruce.com/thmb/Dmhmq0Kl_V6sBET_Cirm9BCdVGU=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/tamarack-tree-growing-guide-5196354-hero-bf0e728b474b43a0a22db9127ef5e570.jpg)
How to Grow and Care for a Tamarack Tree
![](https://extension.unh.edu/sites/default/files/styles/max_width_480px/public/migrated_images/Beech%20-%20Healthy%20Beech%20Bark%20-%20Photo%20by%20Jim%20Frohn%20-%20cropped.jpg?itok=XiPLANWP)
Looking for American Beech
How to Grow and Care for Green Ash
![](https://extension.umd.edu/sites/extension.umd.edu/files/styles/optimized/public/2021-03/HGIC_trees_lichen_16x9.jpg?itok=ruNwzACh)
Lichen, Algae, and Moss on Trees University of Maryland Extension