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Questions tagged [botany]

The study of plants and plant life.

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11 views

Is this a Tabebuia impetiginosa – Pink Trumpet Tree Flower?

Is this a Tabebuia impetiginosa – Pink Trumpet Tree Flower? From Panama.
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15 views

Plant hybridization - cross clade cross pollination possibility

Is it possible for monocots, like dates, to cross-pollinate with eudicots, such as olives? What is the general rule for how closely related species must be to form hybrids organically?
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17 views

What are the standard bio-safety protocols for preparing plant pathology herbarium specimina?

What are the standard bio-safety protocols for preparing plant pathology herbarium specimina? I searched google but I did not found anything relevant, nor in my textbooks. I want to know about what ...
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58 views

Peculiar tree. Fake or no?

I found a very peculiar tree. It looked fake, but it really was true ... What tree is that? I live in the city of São Paulo, Brazil
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1answer
80 views
+50

Is there any biosafety level scale for plant pathogens?

Biosafety levels commonly defined on basis of human/animal pathogens, but what would be the biosafety levels for plant pathogens?
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25 views

What is the identity of this plant?

Unknown Plant from a garden of Bangladesh
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1answer
64 views

What kind of object is this?

I'm unsure whether to call it a fruit or a vegetable. I found it on the road in a neighborhood and decided to pick it up before a car squashed it. (Thus, my initial guess was a squash.)
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39 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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1answer
32 views

Safety of Gorse flowers as vape flavoring [closed]

This may seem like an odd question, but bear with me. I'm wondering about whether I can vape dried Gorse (Ulex europaeus) flowers. Off hand I know they are edible and can be used in making wine and ...
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1answer
6k views

Why are some vegetables/fruits seasonal?

How does the mango tree perceive the summer season, so tree starts producing the fruits? Every tree requires sunlight to grow but what limits the production of fruits to a certain season? For ...
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0answers
7 views

How to cure burns in perennial flowering plant's due to dose of excess urea? [migrated]

I had planted few stone apple plants(perrineal, flowering and mid summer fruiting trees) in plants. Due to insect larvae most of leaves were eaten. So I put in handsome amounts of Urea, Diammonium ...
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2answers
175 views

Can anyone identify this plant?

We found this seemingly ornamental plant somewhere in the midwestern United States; does anyone know what it is? It's fairly low to the ground. Thanks!
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1answer
36 views

What is the name of this plant with a compound leaf of 8 leaflets?

this plant is present in my lawn and I don't know it's name. It is actually diseased and I'm trying to figure out what it is.
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21 views

How are onions planted? [migrated]

From what I've read there seem to be two ways to plant onions - either put part of an onion in the ground, or leave one in the ground for two years and then plant the seed from the resulting flower. ...
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2answers
967 views

Are there venomous plants?

There certainly are poisonous plants, but I was wondering, whether there are venomous specimen, too? First, I thought the stinging nettle could be one such. After all, it's common knowledge it "...
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2answers
2k views

Why do flowers naturally reproduce with their own species?

I have always wondered why flowers reproduce with the same species naturally. Why can't the pollen grains get to a different species flower through via the wind, water, or insects?
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1answer
83 views

What is the genetic reason that this flower has petals of two different colors?

I have two different varieties of the flower, portulaca: one is bright pink, the other is pure white with pink specks at the centre. Recently a flower bloomed which had 50% of the former and 50% of ...
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1answer
134 views

Why does water stress lead to alkalinity of xylem sap in plants?

I was reading this book: Plant Physiology and Development, Sixth Edition by Lincoln Taiz, Eduardo Zeiger, Ian M. Møller, and Angus Murphy when this doubt came to my mind. Abscisic acid, the stress ...
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1answer
156 views

Are there any plants that parasitize on animals?

It seems, fungi often infect animals, while plants it seems, never. Is it because the cellulose cell walls make them incompatible with animal tissue?
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1answer
736 views

Change of phase from juvenile to adult in plants

I tried googling this but couldn't get much information on this. Most of the articles were about induction of flowering. I am more interested in knowing what factors influence the conversion of ...
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1answer
276 views

Viruses selected by evolution

I had a conversation with a family member who is a bio-computer-scientist and he talked to me about what his colleagues (biologist) are doing and I feel confused about it. They work in Chile and are ...
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1answer
25 views

What is the difference between sieve cells and sieve-tube elements?

I looked it up and I'm still confused. Apparently, sieve cells lack sieve plates? What does that really mean? It's difficult to find a good picture of either.
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How do I know by looking at the cross-section of a petiole that it is a photosynthetic organ?

Chloroplasts conduct photosynthesis, right? Would I be looking for chloroplasts in the leaf section? But I'm looking at this cross-section here: http://www.biologydiscussion.com/plant-anatomy/petioles/...
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1answer
8k views

How long will a vegetable live for after being harvested?

I understand this might depend on the types of vegetables, but is there an average or studied specifics? Does it die immediately? Is there a way to precisely diagnose death in plants? If so, what are ...
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0answers
44 views

A small plant that needs identification

This plant has found today on the shore of an island near Fethiye, Turkey. Exact coordinates are 36.669950,29.032914. Local people were unable to recognize it. It smells like lavender. Could someone ...
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0answers
25 views

Is it possible to grow a part of a plant independent of the rest?

Is it possible, using modern knowledge of biochemistry and synthetic biology, to grow a tomato without growing the rest of the tomato plant? As an academic exercise, with full knowledge of the fact ...
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0answers
11 views

Can a dark but warm environment put plants into dormancy? [migrated]

I bought a Juniper. During winter, can I make it undergo dormancy by putting it in a dark but warm (around 20 - 25 degree Celsius) location? Thanks.
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Just by looking at a plant leaf, how do you know if it's a single cell layer or multiple?

Would you first stain the cells with dye to see how it changes color(maybe some different cells wall are lighter than others)? I looked at my textbook and it says bark(periderm) is multi-layered. Does ...
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3answers
89 views

Is it true to say that the genome of trees includes the genome of mushrooms?

As a botany amateur, I know that mushrooms (which are of course studied in the other field of mycology) are dependent in trees or shrubs (and maybe also bushes) and that there are symbiotic relations ...
3
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0answers
22 views

Name for fluid that leaks out of phyllid (non-vascular) plants?

As Wikipedia says (https://en.wikipedia.org/wiki/Non-vascular_plant): Consequently, phyllids are unable to control the rate of water loss from their tissues and are said to be poikilohydric. And ...
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1answer
213 views

Flowers sent by the birds

Birds have sown seeds on my ground and this beautiful flower has sprung. What's the name of this flower? I live in Sao Paulo, Brazil
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1answer
51 views

Effect of light intensity on the frequency of stomata

According to this article, the frequency of stomata increases with an increase in the intensity of light. What I inferred from this is, since the rate of photosynthesis increases at higher light ...
8
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1answer
120 views

Identify this unusually-shaped, orange-colored fruit that grows in pairs?

The photos below were taken on the island of Penghu in the Taiwan straight in October. This was in a public place and the small tree (about 3 meters tall, trunk perhaps 8 to 10 cm diameter) had ...
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1answer
44 views

How is C4 pathway more water efficient than C3 pathway in photosynthesis?

In the C3 pathway: 1 H2O molecule is required for the fixation of 1 CO2 molecule. In the C4 pathway: The only H2O molecule used is in the calvin cycle, so 1 H2O molecule required for fixation of 1 ...
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1answer
41 views

Why do my tomatoes start to rot on the same fruit part?

I observe a phenomenon for many years now. I observe it on a wide diversity of tomatoes produced all over Europe and Northern Africa that are sold at my local supermarket. When I keep my tomatoes at ...
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0answers
13 views

What is the tallest species of the Citrus genus?

As an amateur of botany I ask what the tallest species of the Citrus genus? Running a Google query brings examples to very tall Citrus sinesis but I didn't find a specific claim that this species is ...
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1answer
26 views

Which one is better to use for water stress experiment GWAS or RNASeq?

This is my first time in this area of research. I am working on 95 varieties of bambara groundnut. I have done the agromorphological characterization of these varieties as well as the genetic ...
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0answers
20 views

A single leaf in a very strange air current / wind?

Here is my eight years old movie where I have pictured a single leaf moving in a very weird way: https://www.youtube.com/watch?v=sCjvgdfNCjU Can someone explain me what is depicted in this movie (...
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0answers
22 views

What causes change of sex in certain monoecious plants such as Papaya?

certain male flowering plants can be converted to female flowering and fruiting such as Papaya plants by just insertion of an iron nail in their/it's stem near it's roots? How can iron nail alter it ...
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0answers
20 views

What happened to this grape?

This is a single grape that is much bigger than a typical one and it has a line in the middle, it seems like there's somehow two grapes in one. I wonder what caused this. Some kind of a mutation?
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1answer
135 views

What is the big plant with white flowers on the photo?

What is the 3m tall plant with white flower? It is from Central Europe and there is a creek near to it. I have a guess, but I want to know for sure... Is the small one the same species? More high ...
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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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0answers
29 views

What is the name of this little plant?

It was found in Malaysia in my school compound.
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2answers
129 views

What species is this? What the fruit?

The berries of the fruit are sweet. The tree is growing in Israel.
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0answers
12 views

Optimal Growing Conditions concerning CO2 level (ppm) for aquatic plants

I know this is rather specific but I would like to know what level of CO2 concentration in the water is optimal for the highest possible plant growth rate. I did an experiment where the growth rate ...
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1answer
40 views

What is the difference between transpiration and evapotranspiration?

According to my point of view transpiration and evapotranspiration are different things, but i am confused about this topic. After great effort, I found a major difference between it. Transpiration: ...
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33 views

Effectiveness of feces as a fertilzer

How effective is feces such as cows, chicken or horses for fertilizing the earth of a garden in order to grow crops.
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1answer
2k views

What are pit fields?

I found this statement from my biology text book, "The sieve tube elements and the companion cells are connected by pit fields present between the common longitudinal walls". Is the pit field same ...
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0answers
48 views

Why plant tissues end in -enchyma?

Many plant tissue types end in the affix -enchyma. Etymology: enkhyma "infusion," from en- "in" + khein "to pour" Examples are parenchyma, collenchyma, and sclerenchyma (meaning "to pour beside," "...
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1answer
149 views

Is the Amazon forest O2 and CO2 neutral?

In these days, we receive a lot of concerning news about the Amazon burning. Recently, I came across widespread claims about the production of O2 and the absorption of CO2 by the Amazon forest, ...