Questions tagged [botany]

The study of plants and plant life.

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What Causes the White Layer on These Leaves?

I recently noticed that a Malabar Java plum (Jamun) tree in our garden has most of its leaves covered in a strange white layer, like in the picture I've attached. I'm curious to understand why this ...
Lawliet's user avatar
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20 views

Bacterium fixed nitrogen transfer mechanism

As it is well known, Rhizobium and other bacteria have the capacity to fix Nitrogen and thus perform a crucial role in the natrual nitrogen cycle. I am trying to find a reliable source on how the ...
Grigoris L. 's user avatar
1 vote
1 answer
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Is it possible to live without iodine? (sea plants, seaweed or fish?)

I’ve come across a few other people asking this question on different forums such as on Quora, and Reddit… With my current understanding, we evolved from sea creatures which is why we still need ...
Lecifer's user avatar
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Current Fern Taxonomy

In our school, the manual exhibits an outdated taxonomy as expressed by my teacher. We're following the Kingdom Plantae, Division Pterophyta, then divided into three Orders: Order Filicales Order ...
Jj Luntayan's user avatar
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1 answer
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What indoor plants or groups of plants are significant consumers of CO2?

I am experimenting with the goal to reduce CO2 ppm in a 4200 sqr ft (12 rooms) dwelling by either distributing more plants through the space, or using a hydroponic garden's air as a source in the ...
greg messer's user avatar
-2 votes
0 answers
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Evolutionary origin of stipules?

I have checked the internet and while I have found many explanations for the evolution of Leaves I Have yet to Find an explanation for the evolution of stipules
Harrychink's user avatar
-1 votes
1 answer
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Anatomy of mature juice vesicles in hesperidium fruit?

What is the cellular structure of mature juice vesicles? In a mature juice vesicle what cell types are present, how are they arranged and does this differ between species?
Harrychink's user avatar
1 vote
1 answer
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Does my dracaena marginata have spider mites?

I'm trying to determine if my dracaena marginata has spider mites. A little history about the plant: I got it about 5 months ago and it seemed to be an outdoor plant with the previous owner. Since ...
dmking0728's user avatar
4 votes
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Trying to identify a plant by its root

My kids were digging through a pile of dirt I had made for them to play with (my son wants to do bike jumps off it) and they brought in the attached root. I never got to see what kind of vegetation ...
Joseph sienkiewich's user avatar
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1 answer
59 views

What happens if a lysosome is pierced and it's enzymes are made to get released

I am confused the results be same as it happens when lysosome gets damaged during some metabolic activity or different . If same the cell will die by the actions of those hydrolytic enzymes slowly or ...
Aishna Sharma's user avatar
0 votes
1 answer
72 views

Plant (lamp) identification

I recently came across this lamp part and wanted to get a lamp shade in the shape of the matching blossom. Does someone recognize the leaves?
Creative Frankenstein's user avatar
1 vote
1 answer
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What plants are these

These are aquatic plants. Anyone knows the name please? Well. For a week more and most of them stems rotted. So, wondering if its planted by submerged in the soil or what.
Dini's user avatar
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Are there any plants that retrieve energy from the wind?

Many trees grow in windy places, but appear to have adapted to this by developing characteristics that provide resistance to wind. Are there any plants that appear to have been selected for the ...
Anixx's user avatar
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centrioles in primitive plants, algae and fungi

Do these groups of organizms lack centrioles or possess? Red algae (yes?) Diatoms (no?) Yest (no?) Chydtridiomycetes (no?) Liverworths (yes?) Hornwoths (yes?) 7.Zygomycetes (no?) Cannot find exact ...
Marijus Klp's user avatar
-5 votes
1 answer
64 views

Roses are red ... and have thorns

Just had an unpleasant encounter with a wild rose. Not her fault, should've kept my distance. Roses are some of the plants that have anatomical defenses (I'm talking about thorns). Well, what ...
Agent Smith's user avatar
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What allows ovaries to fuse to form a multiple fruit?

If these ovaries are from different flowers but from a single inflorescence, what makes it possible for these ovaries to fuse or produce a single mass? Furthermore, what exactly is the process of ...
Jj Luntayan's user avatar
3 votes
1 answer
93 views

Why is tautonymy forbidden in botany?

From Merriam Webster: tautonym: a taxonomic binomial in which the generic name and specific epithet are alike and which is common in zoology especially to designate a typical form but is forbidden to ...
imrobert's user avatar
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When Rain Lilies Bloom

I have had the Pink Rain Lilies in a large pot for over 10 years. In that time span, I have noticed it doesn't matter how much water, or what kind, is given to them, I water them daily in warm weather....
Ladyandetramp's user avatar
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1 answer
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White oak germination in autumn — Leaves or just roots?

I collected fallen acorns from a white oak tree in Toronto, Ontario, in mid-September 2023. The acorns were germinating at the time, so I planted them (in a cage to protect them from rodents). So far, ...
User1974's user avatar
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How do plants that grow underground legumes/nuts distribute their seeds?

It makes perfect sense to me when plants employ some sort of method of distributing their offspring some distance from the mother plant. If the mother plant dies due to that location not being ideal, ...
Jackson's user avatar
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Other than lignification how does secondary xylem attain its stiffness then balance that with remaining living processes?

I read in a textbook that the vascular cambium creates secondary xylem to its inside and outside. These cells, formerly conducting water, dry out and harden. Their cell walls get lignified creating ...
GaryW's user avatar
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Is kranz anatomy not a defining feature of $C_4$ plant?

In NCERT Class 11 chapter 13 it is written that The particularly large cells around the vascular bundles of the C4 plants are called bundle sheath cells, and the leaves which have such anatomy are ...
Harjot Dhillon's user avatar
1 vote
0 answers
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Water transport to the Shoot apical meristem in a seedling

I am familiar with how plants transport water from the roots to leaves. Specifically, Water evaporates from the leaf surface, generating a negative pressure gradient which pulls water up from the root....
Giraffes4thewin's user avatar
2 votes
1 answer
48 views

Hypothetical violation of independence assumption for linear models

Let's say I have measured the abscisic acid content (could be any metabolite really) of 10 individual plants which we can consider biologically independent. Then I repeat that measurement for all 10 ...
Luke Richards's user avatar
1 vote
0 answers
41 views

Looking for literature that gives a systematic presentation of geometric and topological features of trees

Introduction I am a software engineer specializing in procedural generation of 3D models, and currently I'm building a generator for 3D models of trees, founded on the theoretical work of Aristid ...
honknoodle's user avatar
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Is it possible to reconnect a severed tree trunk and save a tree?

I ask this question because I saw in a the news recently (September 28, 2023) that some vandal cut down the famous Sycamore Gap Tree I know people normally don't put trees back together, but from ...
Rob N's user avatar
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3 votes
1 answer
102 views

Identify a hanging plant with spherical leaves

This plant was found in the "drylands" section of a public conservatory (you can see a potted cactus in the background). It did not have a label, and there was nobody around to ask about it....
Mark's user avatar
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1 vote
2 answers
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Identifying a plant in the botanical garden of Paris

I went to the botanical garden in the "Jardin des Plantes" in Paris. In a glasshouse with the name "Serre de l'histoire des plantes" on the natural history of plants (exhibiting ...
G. Blaickner's user avatar
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0 answers
51 views

Explanation behind the observed chloroplasts in Elodea during Hypotonic vs Isotonic Solution

Me and my colleagues put the elodea leaf in distilled (hypotonic) and tap water (isotonic). We observed under the microscope that the elodea under the hypotonic solution became elongated and turgid, ...
Jj Luntayan's user avatar
1 vote
0 answers
37 views

Plants taxonomy: priority of names published in the same year

Article 11.3 of the International Code of Nomenclature for algae, fungi, and plants states that the earliest valid name with the same rank has the priority. The question is: if two names (or more...) ...
dandelion's user avatar
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High value weed or plant that can replace the chemical treatment of pesticides and herbicides?

I'm working on a project that aims to replace (at least lower) the use of chemical pesticides and herbicides in farming with the use of high value weeds and plants that can naturally replace the ...
Wissem Boujlida's user avatar
0 votes
1 answer
102 views

What is the relation between Transpiration and Physiological support in plants

According to my information,When transpiration increases, The amount of water lost from the plant's leaves increases.So,Shall i assume That the relation is inverse according to this condition,or shall ...
Youssef Mostafa's user avatar
3 votes
0 answers
32 views

Why don't water cuttings die of root asphyxia?

Root asphyxia happens when there is not enough oxygen available for the roots, for example when the soil is clogged with water. However it is common to do water cuttings where roots directly develop ...
Phylliade's user avatar
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1 vote
1 answer
80 views

Vine has simple and compound leaves

What kind of plant is this? Some leaves are compound (leaves of three). Other leaves are simple. Located in an urban garden in the shade; east of Toronto, Ontario, Canada (July 30, 2023). Woody ...
User1974's user avatar
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1 vote
1 answer
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Is this plant in my urban garden poison ivy? [duplicate]

Is this plant in my urban garden poison ivy? Toronto, Ontario area. July 19, 2023 Full shade Three leaves; toothed but not serrated. Possible Answer: (I can’t post an answer due to the question ...
User1974's user avatar
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0 votes
0 answers
27 views

How is the fate of endosperm decided?

I was studying about the post-fertilization events in angiosperms and I came to know that in most dicotyledons, the endosperm is completely consumed and in most monocotyledons, the endosperm is not ...
TheRedHyacinth's user avatar
2 votes
1 answer
97 views

Why do pollen grains tend to remain in the 2 celled stage in most angiosperms?

In over 60% of angiosperms, pollen grains are shed off at 2-celled stage (Vegetative cell and a generative cell) and in the other 40% it is shed off at 3-celled stage (Vegetative cell and 2 male ...
TheRedHyacinth's user avatar
0 votes
0 answers
26 views

optimal spatial arrangement (distribution) of plants

Microalgae are organisms that can grow in aquatic environments and use light and carbon dioxide (CO2) to create biomass. Research showed that Microalgae's biomass can be used as a bio-fertilizer. My ...
Wissem Boujlida's user avatar
1 vote
1 answer
24 views

Database or model for plant nutrient requirements with respect to soil and climate?

Microalgae are organisms that can grow in aquatic environments and use light and carbon dioxide (CO2) to create biomass. Research showed that Microalgae biomass can be used as a bio-fertilizer. My ...
Wissem Boujlida's user avatar
0 votes
1 answer
291 views

Which plants are best for experiments about plant growth? [closed]

I was assigned writing a term paper about optimizing plant growth using control systems. This assignment is part of a class on sustainable energy usage, which means it's primarily on physics and ...
deck4rd's user avatar
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0 answers
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Is Acer Palmatum Diecious, Monoecious, or another variety of ecious?

I am compiling information about plants in my garden, and studying botany for interest, and was wondering if anyone knows whether Acer Palmatum (and more broadly Acers in general) are monoecious, ...
YoRhANerd's user avatar
2 votes
1 answer
299 views

Can plants be pathogenic towards humans?

In googling this question you’ll only find articles about plant pathogens jumping over to humans eg candida auris and pseudomonas aeruginosa. My question is, like fungi can be infectious to humans (...
imrobert's user avatar
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0 answers
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Are there any genetically modified GMO squash with a vine growth habit which grow back from the root?

When I cut Scottish thistles with scissors, the thistle grows back from the tap root. When I accidentally step on squash vines, the squash vine dies. I was wondering if genetics research has produced ...
Samuel Muldoon's user avatar
0 votes
1 answer
114 views

Which kind of inflorescence(s) does Sonchus oleraceus have?

Many capitulum inflorescences, several corymb inflorescences with capitulum inflorescences as the end nodes of each corymb inflorescence, or one compound corymb inflorescence with capitulum ...
William's user avatar
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1 vote
1 answer
81 views

Is it viable to make liquid potassium ferilizer through dissolving very small amounts of potassium chloride in water

I wasn't able to find fertiliser online that was simply potassium chloride and I didnt want to source my potassium chloride solution from potassium sulphate or other general NPK fertilisers for my ...
Malhar Kookada's user avatar
1 vote
1 answer
62 views

Why is it essential to uproot a plant just before flowering in order to see nodules?

In my textbook it was written - Uproot any plant from common pulses just before flowering and you will see near spherical outgrowths on the roots .
Kumar Priyanshu's user avatar
2 votes
1 answer
538 views

Leaf pictures: Which disease?

I had several plants that with same symptoms, which all eventually died within some weeks: Formation of blisters along stem (no picture) and leaf veins, that seem to pop up (assumption) and make ...
KaPy3141's user avatar
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2 votes
2 answers
76 views

Flora and fauna of early homo sapiens environment?

Where can I find as much detail as possible on the flora and fauna (and perhaps geological structures too) between the time of the origin of Homo Sapiens say ~300kya to their "out of Africa" ...
Lance's user avatar
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2 votes
0 answers
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Sports of western sword fern: descriptions or resources?

I found a western sword fern (Polystichum munitum) growing in a home garden that appears to be showing a sport. Notably, the sportive fronds come off the same rootstock as more normal-appearing fronds ...
Maximilian Press's user avatar
3 votes
1 answer
132 views

Has Darwin's abominable mystery been solved or not?

When I research Darwin's abominable mystery, the abrupt origin and rapid diversification of the flowering plants during the Cretaceous, I read different conclusions about whether it has been solve or ...
Qiulang's user avatar
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