Questions tagged [trees]

Common classification for perennial plants with woody, elongated stems.

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1answer
72 views

Tree identification from dried branch

I found a very interesting branch last week, and have been trying to identify it but cannot seem to find the answer. If anyone has any suggestion, I would be grateful. I found it near the forest, ...
4
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1answer
68 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 ...
4
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1answer
90 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 :)
4
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1answer
153 views

Jamaican/Caribbean insect, plant identification keys/field guides

Where can I find plant and insect identification keys and Field guides for Jamaica specifically, or for the Caribbean as a whole? I've searched Amazon and google for Jamaican and Caribbean ...
4
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1answer
2k views

What kind of (cinnamon?) tree is this?

This tree was found in the rainforest on subtropical Japanese islands. At first I thought that it was a camphor tree, which are indeed common in Japan. However, the leaves are slightly different and ...
4
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2answers
204 views

Can you identify this phyllanthus tree?

I have this tiny tree in my garden in Cancun, Q.Roo Mexico. (More photos available here.) The little tree started to grow in a planter. I did not pay any attention to it until it grew to 10 cm. It ...
4
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1answer
279 views

Fruit identification - What is this green long fruit?

I found this fruit in the South of France, but I have no Idea what it is. It's a green, hard fruit. I tried to cut it to see the inside (on the following pictures). It fell from a big tree, but I don'...
4
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1answer
11k views

What is the difference between a species tree, a gene tree and a phylogenetic tree?

I have found websites and text books disagreeing over this. For example, Phylogenies are also known as “species trees”... http://biologos.org/blogs/dennis-venema-letters-to-the-duchess/evolution-...
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1answer
87 views

Biological data source of trees

I need some biological data for many types of trees, but I can not find good source of this on internet. Where can I find following type of biological data of any tree: Biological Profile Taxonomy ...
4
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1answer
639 views

What biological processes can affect the temperature of the shadow a tree casts?

Assuming two trees have similar shape and leaf coverage, could differences in the biological processes among them lead to differences in the temperature of the shadow they cast? What biological ...
4
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1answer
118 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.
4
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44 views

Strategy for tree and shrub identification

I often find it difficult to identify trees and shrubs even though I have many handbooks and manuals on trees and shrubs in my area (New England). The typical problem is that the species is not in the ...
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1answer
794 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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1answer
112 views

Santa Fe xeric indigenous tree

The hills around Santa Fe are covered in a particular xeric tree which is quite small and looks like some kind of juniper which I have been unable to identify: What is this species?
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68 views

Tree identification in the Caribbean

I live in Puerto Rico and I'm trying to identify this tree and if possible how to kill it since it is infested with termites. https://imgur.com/gallery/Xbmq0g8 Tree Closer view of flowers and leaves. ...
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97 views

Why do quaking aspens quake?

I've just finished reading The Hidden Lives of Trees by Peter Wohlleben, which I thoroughly enjoyed. According to the author, the advantage of shaking the leaves is that both sides of the leaf are ...
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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:
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210 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 ...
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96 views

Do ginko trees grow well in Eastern North America (specifically Ontario,Canada)

I have recently noticed many Ginko (Ginko biloba) saplings planted in my Eastern Ontario city (in Canada), and they are looking a bit sickly, with yellow leaves. They seem to be a popular choice in ...
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519 views

identify this tree

location: trabzon(turkey) planted for recreational purpose
3
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1answer
87 views

What's the name of this green fruit with little pikes fallen from a city tree on the pavement?

What's the name of this green fruit with little pikes fallen from a tree on Paris (France) pavement ?
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3answers
248 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?
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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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1answer
141 views

What plant/tree is this?

Found this in a rural area next to the road last month and I wonder what is it? From my searches I think it is a strawberry bush but I'm not sure and any help would be appreciated, thanks!
3
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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/...
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1answer
116 views

Does the 'President' have 2 Billion Leaves?

The world's second-largest known tree, the President, in Sequoia National Park is 3200 years old and is said to have 2 billion leaves (Source: https://youtu.be/vNCH6uhB_Bs?t=59). Is this correct? And ...
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2answers
280 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 ...
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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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1answer
76 views

Will the climate change help the trees to grow?

I've heard several contradictory views and I'm not sure which factor do climatologists count with. Counting with all the effects of the current climate change (including changes of biotopes on places ...
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1answer
49 views

Tree identification

I went to Araku few days ago and saw this tree in a garden . Here are the leaves I know the pic of fruits is a bit hazy and out of focus,but it's the best I have. These trees were in a cluster ,...
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1answer
67 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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1answer
895 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 ...
3
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1answer
30 views

How is silica transported to the leaves of genus Dendrocnide trees to form stinging needles for toxin delivery?

I just read the NYTimes' This Tree’s Leaves Look Soft and Inviting. Please Don’t Touch Them. which mentions the genus Dendrocnide and that Wikipedia section begins with: Contact with the leaves or ...
3
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1answer
61 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
584 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 ...
3
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2answers
320 views

epiphyte mats in tropical forests

I read in an ecology text book ("Ecology: Concepts and Applications" (7th edition) by Manuel Molles) that trees in tropical forests can be sustained despite the poor soil is because they extract ...
3
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1answer
84 views

Why does the open tree of life have 2600 species of rose?

The open tree of life has 2754 species and subspecies with the prefix Rosa. Wiki says: There is significant disagreement over the number of true rose species. Some species are so similar that ...
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88 views

Identify this tree from Nepal

This is a picture of a tree in Nepal. Can somebody identify it?
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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 ...
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0answers
201 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?
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52 views

Names for the degrees for symptoms from drought (or other damage) done to trees

Looking out my window, I see trees suffering from drought. I once knew the name for the degrees visible, but I have forgotten and can't find it on the net. Attempt at describing "level of dryness" ...
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0answers
88 views

What is the name of this tree? [duplicate]

I noticed this plant growing on the Azores islands. It has a surprisingly perfect distribution of branches, which gives it the appearance of a fake decorative plant. Does anybody know what type of ...
3
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1answer
411 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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1answer
644 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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4answers
5k 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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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.
2
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1answer
120 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. ...
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2answers
2k 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 ...
2
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1answer
381 views

Are “constraint trees” in phylogenetic analysis cheating? How can I correctly use them?

How do phylogenetic experts evaluate results which use constraint trees? Are there examples in the literature where phylogenetic experts detail how they use constraint trees? Here is my problem. I ...