Questions tagged [trees]

Common classification for perennial plants with woody, elongated stems.

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2
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1answer
54 views

Why does a lightsource postpone the time it takes for the leaves falling from a birch tree?

It is autumn and the leaves have already left their trees on all birch and other trees that has leaves, except one. This birch has a spotlight pointed to the tree and it is on 24/7. I have recognized ...
7
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1answer
103 views

Identifying a shrub with unusual “many shoots” growth behavior

While recently hiking in the southern mountains of New Hampshire, we came across a plant, and some of them were exhibiting what we interpreted to be a disease, or least unusual growth. On some of the ...
8
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2answers
191 views

What is this fruit?

There is a hairy hard shell (looking like a small kiwi), which naturally breaks, and under it there is brain-shaped red sweet flesh, half-covering the smooth black seed. Picture taken in the ...
4
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1answer
610 views

Are turkish hazelnuts edible?

The title of this question is Google suggestion verbatim, when I tried to write it. Yet, I found no answer specifically for Turkish hazelnuts. Turkish hazelnut is a tree and it's fruit looks ...
0
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1answer
45 views

Stained chestnut tree leaves

The leaves of the chestnut tree in our back yard have, for a while, developed these stains on them: ..which don't appear to be a normal feature of this tree's leaves, at least according to the ...
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1answer
260 views

What attacked my peach tree?

Help me please! I have to get rid of these!
3
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3answers
231 views

If it weren't for animals, insects, or people, would plants that produce seeds (nuts, fruit, etc) cease to exist?

I gather that some would or could in theory still be successful, but don't most depend on takers to flourish?
7
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2answers
206 views

Palm Tree Identification

I need help identifying this particular palm tree. Unfortunately, I don’t have many details to give, and I’m by no means one to say I’m even an amateur at plant identification. We are unsure of its ...
3
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1answer
60 views

Identification of a young tree in the alpine region of southeastern France

I have a young tree growing in my backyard (in Grenoble, France), and I was not able to identify it, despite searching with many identifier tools. It's 2 years old now and must be 2 meters high. It ...
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1answer
87 views

Would salt cause a pistachio nut not to be able to germinate?

If I buy a bag of pistachio nuts that have been hand picked off the tree when ripe, then salted in a (light) saltwater solution, then vacuum-sealed, and stored in a refrigerator, then will they ...
3
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0answers
87 views

Identify this tree from Nepal

This is a picture of a tree in Nepal. Can somebody identify it?
2
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2answers
149 views

Is Black mulberry always deciduous?

I have a black mulberry (Morus sp.) in my garden (or 2 actually). According to the information I could find it is a deciduous tree. The trees in my garden do indeed lose their leaves. However, as most ...
1
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1answer
158 views

Do squirrels and blue jays play a role in oak tree distribution?

White oak (Quercas alba) acorns have lower tannin levels than red oak (Quercas rubra) acorns, therefore animals tend to eat the white oak acorns before red oak acorns. Animals such as squirrels and ...
3
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1answer
519 views

identify this tree

location: trabzon(turkey) planted for recreational purpose
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0answers
36 views

How long does it take to extract a tree core for dendrochronological analysis

I'm going to do research in the tropics and am considering using tree cores for part of my analysis. However, for my planning: How long does it take on average to extract a tree core of a tree with ...
0
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1answer
30 views

Why do some trees hold their leaves through fall and winter?

Why do some species of oak (Quercus spp.) retain their leaves through fall and winter? I've found that these leaves are called marcescent leaves. There must be some benefit that the tree gains from ...
10
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1answer
607 views

What kind of tree is this — why do its huge leaves change shape and “grow fingers”?

Edit 2: Confirmation that it's one tree! Surrounding trees on either side along the sidewalk are completely different, and the ones on the other side of the fence are short and have rounded but far ...
1
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1answer
145 views

More informative phylogenetic trees

In the presentation of phylogenetic trees, the geometric shape of the trees often seems somehow arbitrary and is more driven by aesthetics than by informative reasons. But wouldn't it make sense to ...
5
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1answer
92 views

What might a supposed “tree enzyme” be — injected into a Morton Bay Fig tree?

I was recently visiting Fremantle in Western Australia and noticed a large Morton Bay Fig tree in Kings square in the centre. Apparently the health of this tree had been declining, but they hope that ...
2
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0answers
49 views

Are trees still carrying their leaves more likely to be felled by an autumn storm?

Is there evidence that trees still carrying their leaves are more likely to be felled by an autumn storm than trees already having lost their leaves? At first sight this seems plausible (and might be ...
2
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0answers
106 views

Flora of Ice Age Europe

I'm trying to get a very in-depth idea of the ecosystem of Pleistocene Europe, somewhere around 40,000 years ago, and I can't seem to find what types of foliage (other than the obvious grasses and ...
4
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1answer
89 views

What is this tree in Sydney?

My family snapped this picture around Sydney, Australia. Could someone please advise what this tree is? Help! We are smittened with it :)
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0answers
48 views

What species of tree is this?

We have this cute little tree in our front yard (Denver CO): Unfortunately we have to get our water main replaced and this tree lies right in the path of destruction. Anybody know what species it is? ...
3
votes
1answer
2k views

What is this tree that displays sycamore like characteristics but appears to be too small?

I have been wondering about this tree: It's bark/leaves make me think it's a sycamore, but it seems too puny. I don't think they'd plant a sycamore there... What is it? The tree is in a park/...
3
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1answer
395 views

Identifying a weird Texas tree

I recently saw this tree in Texas, with many bees on it. I think it attracts bees. However it didn't have any specific smell, so I don't know why there were so many bees (they were bee for sure). I ...
3
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2answers
247 views

Species I.D. hardwood tree

There are two of these trees, growing in old fence rows, along my yard, in central VA, Augusta County, Shenandoah Valley. They have smooth, leathery leaves, pale wood, quite hard to cut, and tough to ...
3
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0answers
50 views

Please help ID this plant

Can anyone please identify this plant and confirm if the species is Synsepalum dulcificum (Miracle fruit)? Pics were taken near my house in Bangalore. Because the miracle fruit plant is not native to ...
3
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1answer
849 views

what is the poison in chinaberry?

I was trying to look up what the poison in Chinaberry is, however, with the exception of a couple related compounds was able to find no information on the poison. What chemical makes up the Chinaberry ...
3
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1answer
123 views

Did the eclipse make the leaves fall?

I live in Pittsburgh PA, the eclipse on Monday August 21 was only about 80% coverage here. It was notably darker, but less dark then an overcast day. The night of August 21, had a low temp of about ...
4
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1answer
117 views

Oregon - Tree Identification

Western cascade forest, definitely was planted. In a clearing in the forest along with some western red cedars. I couldn't find anything that would match it when looking for native Oregon trees.
6
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1answer
223 views

Can you help identify this tree from my garden?

The picture is an evergreen tree. I have seen very similar trees in Northern Italy. I would appreciate any help.
3
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3answers
1k views

Strange white strings on cherry tree leaves

What could be the cause of these white strings on the leaves of our sour cherry tree? Is it some kind of fungus or an insect? Also, i don't know if it's related or not, but on the other side of the ...
3
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0answers
191 views

How did fig tree take root in trunk of palm tree?

Please see pictures below. I never saw anything like this. Do the roots of the fig tree penetrate the trunk of the palm tree? Is there a symbiotic relationship between the two?
8
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1answer
684 views

What is the name of this tree with compound leaves?

Can anyone tell me what is the name of this tree? It was found in Northern US. (click on image to enlarge it)
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2answers
160 views

Is this an eastern hemlock (Tsuga canadensis) seedling?

I recently planted a few seeds gathered from a Tsuga canadensis cone in soil gathered from a garden full of weeds. I can't tell if what I have growing is a hemlock seedling or just another weed. See ...
5
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1answer
89 views

Tree identification - Oregon

A bit west of Portland. It doesn't look native to me, and we didn't plant it. This is the first year it flowered, so I decided to see if I can get it identified. If it matters, the flowers are ...
2
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1answer
70 views

Are there any trees that prefer to grow on the floor of water bodies but protrude to the air?

Are there any trees that prefer to grow on the floor of water bodies but protrude to the air? Specifically, those that prefer salt water or grow on shallow sea.
3
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1answer
634 views

What is the name of this whorled-leaf tree in India?

Location: South India Month: June Season: Rainy Branch Distribution: Leaf of the tree:
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0answers
117 views

What is the name of this South India plant?

Location: South India. Month: June. Branches of the tree: Lower part of the Plant: Plant's leaf: Whole plant:
3
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1answer
563 views

How can tree branches grow upwards against gravity?

I saw this tree in front of my room with those branches, and I asked myself why they didn’t grow downward in the direction of gravity since that would be easy for them? And I came to the conclusion ...
1
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1answer
724 views

Which nucleotide as start point for maximum parsimony?

Background Maximum parsimony is used to build an evolutionary tree by choosing the "simplest" one. I see a lot of examples about how this should be done. For example: Question However it's not clear ...
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1answer
157 views

What kind of tree is this (Seattle, WA)?

This tree is a volunteer and I am hoping to find out what kind of tree it is. Young tree Leaf sample Below is a more recent photo showing flowering.
12
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1answer
472 views

What tree is this?

Can you please help me to identify this mystery tree. I have been trying to identify it for four years (Leafsnap app didn't help). Here are a few things about the tree. All the leaf veins are ...
3
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2answers
209 views

Can someone identify this tree from the Pacific Northwest?

A tree at my house in Seattle, Washington, USA has these leaves. Can someone tell me what it is?
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0answers
744 views

What is the name of this green berry tree?

Location: South India Month: May Location: Outside, Metropolitan. Tree with berry fruits (poisonous or not, I don't know): Its leaves:
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1answer
2k views

What is the name of this plant with mango type leaves?

Location: South India Leaves: Mango Type Indoor/Outdoor/Wild: Indoor Month: May
4
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1answer
776 views

What is the name of this big tree with look of banyan branches?

Location is India, Tree is so huge & some branches are hanging like Banyan. Its Hanging Branches look: & Finally its leaf: So what is it then?
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0answers
57 views

What is this plant & it looks like USA tree “ Carya ovata”?

I saw this tree in India. It was so fascinating because its leaf looks like Carya ovata, which only grows in the USA & Canada according to Wikipedia: Carya ovata, the shagbark hickory, is a ...
9
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1answer
154 views

At what temporal scales do forest structures change?

At which time scales do forest stand characteristics (i.e. stand density, species composition, & diameter distributions) change in a temperate European forest which is not managed? Ideally, I'd ...
12
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1answer
355 views

What is this small tree?

I found a dozen of these small trees in a local park that is just an overgrown homestead. The leaves look something like an elder but the flower clusters surrounded by white, four petaled false ...