r/dendrology 5d ago

Where is this tree from originally?

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r/dendrology 6d ago

Advice Needed Issues with blue spruce

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Hi all, I’m looking for some advice on these globe blue spruce shrubs I have. In the last month some of the needles on the top have been turning red.

Can you tell me what’s happening and what might be causing it? Anything I can do to help them?

I first noticed the color change after we had the house painted and the painters had the shrubs covered in a tarp for about 2 days. Could it be from lack of sunlight?

We planted these last year and until now they’ve been doing great. We are in northern MN. Thank you!


r/dendrology 7d ago

ID Request Can anyone please identify this tree?

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I bought a house in Johnstown Pennsylvania and I moved in recently and I was wondering what kind of tree this is.


r/dendrology 7d ago

What is this

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Hi. I planted a tree about 4ish years ago. Its a wildfire black gum and im in Oklahoma. These mushrooms i noticed earlier this year, from googling I believe this is a certain type of fungus that will eventually kill the tree. Am I right and if so can I remove this tree and plant somwthing else or will the fungus infect the new tree?

Thanks


r/dendrology 9d ago

Hole in tree. How to address?

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Otherwise healthy maple tree has deep hole in the trunk. What’s the best way to deal with this? It’s a very important tree to my property. Thanks!


r/dendrology 12d ago

What are the callouses/growths along this tree? (And what is the tree)

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Not sure what this young tree is in the garden. Possibly a birch?

But I have no idea what that strange ridged callouses and growths are along the branches and joints.

Any thoughts?


r/dendrology 13d ago

ID Request Question about Oak ID

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Looking for some help with IDing this oak tree. Seen in Calvert county, MD in a moderately sloped upland area.


r/dendrology 13d ago

what is this little dude.. northern Californiae

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wee


r/dendrology 14d ago

From the whatsthisplant community on Reddit: Maritime Northwest elderberry ID

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r/dendrology 16d ago

Question Whats going on with this fella? Slide for more pics.

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r/dendrology 19d ago

How come Newton’s Apple Tree is still alive?

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That tree is now more than 360 years old. I read that that breed (Flower of Kent) typically lives 50 to 100 years.

Newton’s tree got blown down and rerooted itself in 1820, which means it could’ve began growing again from scratch, if that is possible? But still, that would mean it was almost 200 years old when it got blown over and is 200 years old now.

Do some trees just live much longer than the typical estimation?

I don’t know much about trees and I found this very intriguing. Could anyone help me understand?


r/dendrology 23d ago

ID Request Skull on a leaf

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Wondering what type of leaf this is and what could cause such an unusual marking on it.


r/dendrology 24d ago

ID Request Some sort of honeysuckle :)

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Northern, VA, USA
Pretty and prosperous


r/dendrology 25d ago

What are the horizontal bands?

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r/dendrology Aug 08 '26

ID Request Any idea what these are?

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Recently saw two different molds (?) growing on a tree in my parent’s yard, one flat against the bark and the other sticking out as pictured. It’s not been doing well this year anyway so I suspect it’s dying, but these are new growths. Any ideas? Thanks in advance for any help!


r/dendrology Aug 04 '26

Please help me with a term😇

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Hi! Sorry if this comes of a bit messy, but I am writing a novel, and looking for a term to describe a cut down tree that is very overwintered, almost clear of bark and and so smooth that it looks like it was meant for the soul purpose to become a bench after dying and it never rots. I grew up near the ocean and we had many trees like these natural benches, and I can’t really describe it any better. If you can give me something that is more common term for it I would be grateful!


r/dendrology Jul 23 '26

Lake County, Northern California

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r/dendrology Jul 22 '26

Oak Conerns

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r/dendrology Jul 21 '26

Question Is this Old Man's Beard?

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I was walking along Deschutes National Forest and saw a bunch of these hairy fibers dangling from what I assumed were pine trees. Is this the stringy lichen, Old Man's Beard?


r/dendrology Jul 20 '26

ISO acorns

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Here’s a long shot for the headz- but does anyone (on the west coast or SW of North America) have access to acorns from evergreen oaks? I will pay you to mail them to me if you’re confident in the species. CA native ones are easy enough to come by, but any other species is difficult to source


r/dendrology Jul 17 '26

ID Request Is this a Bay Tree?

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r/dendrology Jul 16 '26

Monster Oak Tree - North Cape May, NJ

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Not sure what kind though.... about 65-70 ft tall.


r/dendrology Jul 16 '26

Is it normal for a maple to shed bark like this?

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r/dendrology Jul 14 '26

A 3-winged sycamore key

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It's been pretty warm these past few weeks on the West Coast of Scotland (mostly!) and I found this 3-winged key on my walk this morning. I've never seen anything like that before - apparently if the tree is under stress it can happen. Would this hot summer weather be affecting the tree ir would it be stress from something else?

Edit: This is from a sycamore maple (don't know how to change the title, only the post - sorry!)


r/dendrology Jul 11 '26

Never seen anything like it

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Found in Edinburgh Scotland in a church cemetery. I was mesmerized because it's not really a pine tree