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Questions tagged [trees]

Common classification for perennial plants with woody, elongated stems.

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3answers
97 views

Is it true to say that the genome of trees includes or at least “encapsulates” the genome of mushrooms?

As a botany amateur, I know that mushrooms (which are of course studied in field of mycology and not botany) are dependent in trees or shrubs (and maybe also bushes) and that there are generally ...
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0answers
30 views

What is maximum growth rate possible for tree if we could genetically modified it?

If we genetically modified tree to have it grow as fast as possible and consume carbon mass as much as possible. I want to know the uppermost limit for it to grow in each year around the tropical area ...
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0answers
15 views

Book recommendations on the evolution of trees

Trees have been around for hundreds of millions of years, since the first "true wood" evolved during the Devonian period ~400M years ago. This means we have fossilized wood in the form of tree ferns, ...
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0answers
11 views

Tree with details very small foliage

I found this tree with its very small foliage. what tree would it be? [enter image description here] I living from São Paulo - Brazil!! (https://i.stack.imgur.com/xHhqu.jpg)
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1answer
303 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 ...
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0answers
17 views

Evolution and survivability of palm-like plants

I live in a place filled with palm trees. I’ve been wondering for some time now, that if I lobbed off the top of a palm tree, that if the palm would regrow from another new branch? Would the palm die? ...
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0answers
41 views

Folded stem on apples - does it have a name?

I have some Newton Wonder apple trees. One feature of the apples it bears is that the flesh around the stalk is occasionally elongated out of the calyx. Below is a picture that shows this on the near ...
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0answers
31 views

Spatial sequence of autumn leave colouring: top to bottom

Leave colours on trees seem to vary on the same tree from top to bottom. Leaves higher up are already further ahead in the shedding process. What's the reason for this tempero-spatial gradient?
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0answers
34 views

How many plants or trees should one plant to take carbon dioxide from atmosphere?

I'm interested on computing things. I know that some biologists have done mathematical modelling. Has anyone took any calculations on the following? How many trees or plants should one plant such ...
8
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1answer
846 views

Squirrel nest construction

I've often wondered how squirrels -- specifically, eastern grey squirrels (Sciurus carolinensis) make their nests. Specifically, I've been curious about how they "weave" everything together to make ...
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0answers
5 views

Young sourwood trees vs Carolina Silverbel

I’m looking for a good way to distinguish young Carolina Silverbell trees from young sourwood trees. Suggestions?
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0answers
32 views

Are there any evolutionary reasons for the different tree shapes? If so, What are they?

So we know there are a thousand types of trees with different shapes. We have Columnar shaped trees: Pyramidal or Conical shaped trees: Weeping shaped trees: And we also have Round, Vased, Open-...
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1answer
77 views

Leaf formation on unknown tree: cocoon or something else?

A small tree in my yard has leaves which appears to double over themselves. The first two pictures show this phenomena, and the third is the same tree to maybe aid identification. I can't absolutely ...
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1answer
129 views

How many nutrients do trees process daily?

Is this tree fact below that I have found on social media sites true? I don't know the source of the quote. It's pretty amazing. I'll be glad if someone can provide the source too! Natural Wonders ...
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0answers
18 views

What is the total mass of leaves on an 'average' mid-latitude deciduous tree?

I know that this is a broad question as there are a very large number of different species of tree with all manner of profiles, height, leaf sizes, etc. My ultimate goal is to estimate the total mass ...
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4answers
4k views

Doubly-compound leaf examples?

I've got a project where we collect leaves, classify them, etc. There are some required classifications. One of the requirements is to get a doubly-compound leaf. What are some trees that are doubly-...
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2answers
1k views

Identify this indoor plant with strange stem-like leaves

It appears that this plant branches multiple times from the base of its stem; however, I'm not sure if the base stems are from one organism. It becomes yellowish in color at the tip each stem-like ...
4
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2answers
150 views

Why does this plum/apricot hybrid look like brains?

Why does this plum/apricot hybrid look like brains? Notes: Here's a photo of what a normal fruit on the tree looks like. Location is Zone 5, east of Toronto. There are about 20 other fruits on the ...
5
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1answer
281 views

What is this (seed/berry)-like object and where is it coming from?

I've been finding these little green (seed/berry) like objects in my garden for three years now. This picture shows either a large variant or simply a later lifecycle stage of development. At ...
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1answer
26 views

Long brown needly things fallen from tree?

I was walking next to a row of trees (I think coniferous) and found many of these things on the ground: A parallel bundle of 2-4 medium-brown needly things, about 15 cm long and 1 mm in diameter, not ...
7
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1answer
85 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 ...
4
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1answer
59 views

Is it unusual for populations of archaea to be found living inside trees?

The NPR News article and podcast Getting Fire From A Tree Without Burning The Wood begins with A scientist walks up to a cottonwood tree, sticks a hollow tube in the middle and then takes a lighter ...
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0answers
27 views

Do trees consume more CO2 at day time than they produce at night time? [duplicate]

I guess they should be, otherwise what is the point of planting them to reduce CO2 emissions, but I don't see how they do that
9
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1answer
152 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 ...
79
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2answers
8k views

What's up with this leaf?

This cool design was "tattooed" on this leaf. I found it on the windshield of my car. What's up with it?
6
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1answer
150 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.
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2answers
181 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 ...
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2answers
114 views

Do trees in a forest generally grow in a lattice formation?

The closest arrangement of trees in which they are at least a certain distance away from each other is a triangular lattice, much like a honeycomb. I wonder if you tend to see this sort of arrangement ...
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0answers
18 views

Are Pando older than 80,000 years?

When you look info for Pando trees, you usually find that the clonal colony is about 80,000 years old. But here, List of oldest trees there is a reference to a book which states the age to (possibly ...
2
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1answer
51 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 ...
6
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1answer
77 views

Branch taking over a tree trunk

I stumbled upon a birch growing in sandy soil in a coniferous forest in central Russia. It looks like over time the tree trunk got bent towards the trail and one of the branches became the new trunk ...
2
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1answer
78 views

What is this tree growing in my town?

Can anyone tell me what kind of tree this is? I took this picture today. It's in Iowa City, Iowa.
3
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1answer
54 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 ...
9
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2answers
199 views

Is the chemical composition of urine detrimental or beneficial for a tree?

Seeing as a lot of people around the world urinate against trees it came to mind that I never thought about how the tree responds to this. Is it detrimental for a tree if people urinate against them? ...
2
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1answer
107 views

What plant have I collected?

I have collected this plant from the soil in a park in Belgium. I thought it was a child of a plant which was growing nearby but when the leaves started to grow I realised it is a different plant. ...
3
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1answer
47 views

What species of tree is this (found in Navarre, Spain, many tiny flowers)?

It was planted within the urban area of Pamplona, Navarre, in Spain. It does not seem like it's native to the area, since no trees like it are found in nearby forests. Its size is of 7-9 meters, while ...
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0answers
21 views

Near-zero water loss in a closed hydroponics system?

I know there are a lot of factors that would impact this... Plant type. Plant neediness (i.e., even sibling plants will possess different needs, defects, etc). Automation efficiency. Water & ...
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0answers
61 views

What does banyan tree release from roots?

What happens when banyan tree roots pierce and joins in to the water in a river beside. Does banyan tree roots excrete any waste? If so, when will that happen night or morning ? What properties do ...
3
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1answer
553 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:
4
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1answer
440 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 ...
2
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0answers
35 views

Winter is getting shorter and warmer. Does this mean deciduous trees can photosynthesise for longer and thus absorb more carbon dioxide?

As springtime is starting earlier this year, I wondered if that would mean deciduous trees had more time to photosynthesise and, therefore, they could absorb more CO2 or have longer periods to grow, ...
4
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0answers
184 views

Can someone identify this tree?

It appears to be a kind of fig tree (perhaps similar to the fiddle leaf fig tree but without the fiddle?), although the leaf shape doesn't match. It didn't seem very appealing to eat (!), it was ...
1
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1answer
61 views

Is it possible to estimate tree height from stump/breast diameter and species?

Kindly pardon my poor knowledge, my area of expertise is not biology. I am currently working on project where I have access to tree's stump and breast diameter and its species. We are trying to ...
13
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2answers
862 views

What is Growing on These Tree Leaves? (Image)

I found a seemingly diseased tree when I was out playing tennis yesterday... What is growing on this tree leaf? Is this a disease? If so, is it contagious? I have zero knowledge in botany, but I'm ...
6
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1answer
223 views

What sort of seed pod is this?

My son found this floating in a stream in Massachusetts, in the northeastern US. It was intact when he found it, but he cracked it open to see what was inside. I did some Google image searching, but ...
5
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1answer
1k views

Mesophytic Climax community in succession?

My textbook says that in all cases of ecological succession (xerarch, hydrarch, etc.), the ultimate climax community, assuming constancy of environment, is a mesic community. Xeric or hydric pioneers ...
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1answer
1k views

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

Location: South India Leaves: Mango Type Indoor/Outdoor/Wild: Indoor Month: May
3
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1answer
914 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/...
4
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2answers
270 views

Why do pine stands exist?

I live in the midwestern United States. I cycle to work, sometimes on heavily wooded roads, and I can't help but notice that in most places within the surrounding deciduous forests Pine and evergreen ...
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1answer
70 views

Can someone help me to identify what kind of pear is this?

I went to my local groceries supermarket (in Lima, Peru) and found this cheerful looking pear named locally as "pera canela". But I found it weird as the only variety which I'm aware of is Packham's ...