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The study of plant life; e.g. angiosperms, gymnosperms, bryophytes, pteridophytes, and algae.

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can “Pandanus amaryllifolius”[used in cooking] become poisonous if grown near drainage

how do they absorb wastes and become not suitable for eating
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1answer
19 views

Test question regarding botany

I'm having a hard time understanding what exactly those letters and numbers in the task in the photo below represent, also the task says "Is the blossom formula written correctly?" translated from ...
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7 views

What is the best media for tissue culture except ms medium?

What is the best media for tissue culture except ms medium?I have found that ms media is used most because of its compatablity,but I am trying to find a new media like gomber,whites etc.which one is ...
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24 views

What is this Plant

What is this plant? It grows in the south of Ukraine
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1answer
60 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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26 views

Why do organisms in Kingdoms other than Animalia have so many different types of reproduction in comparison to them? [on hold]

I was reading the 5 kingdoms of classification of living organisms by Whittaker and I observed that in most of the organisms constituting the Kingdom Monera, Protista, Fungi and Plantae reproduction ...
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1answer
115 views

What is this Las Vegas area weed?

This is a picture I took of my mystery weed out by Pittman wash in Henderson NV earlier this year. From my experience this last year, I assume that the plant turns red later in the year and loses the ...
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1answer
18 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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0answers
14 views

Can a polyploid be a “clone” of a single parent?

I still need to learn more about the different mechanisms for polyploidy, but from what I can tell, a polyploid can be an exact clone of the parent, except that its chromosome count has doubled. If ...
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0answers
9 views

Grape ivy tendrils

I have a peculiar question. I keep a grape ivy, Cissus alata as a houseplant and I cannot but wonder what exactly makes it decide to grow tendrils? most offshoots have none, only one leaf growing from ...
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0answers
55 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
4k views

Which strange fruit is this?

Yesterday, my brother brought a strange fruit resembling Lychee (but much bigger in size). Here is a pic of it: When cut it, it had smell like banana and fibers were like of the chicken meat, though ...
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2answers
68 views

Unknown plant, can anybody identify this plant?

Location: Western Germany Can anybody identify this plant from Germany ?
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1answer
50 views

Is this 12+ foot plant a sunflower or hogweed?

I'm trying to determine what this is. The plant is well over 12-feet tall, had huge leaves, and a very thick stalk. People near me say it's a giant sunflower plant, but it hasn't bloomed or shown sign ...
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1answer
200 views

What is the scientific name of this tree?

The tree flowers prior to the monsoon season and sheds it's leaves in Winter and regrow them in Spring and Summer. I have seen three different colours of the flower (growing in my neighbourhood): pink,...
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0answers
22 views

Can someone identify this Brazilian flower?

The photo was taken in january 2004, at Parque Estadual do Rio Preto (Black River State Park), in the Cerrado (savanna-like) of northeastern-central Minas Gerais, Brazil. The plant was herbaceous/...
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1answer
76 views

What is this plant, and is it edible?

After I planted some spring mix lettuce a couple of years ago, nothing survived except for this plant. It doesn't look like any of the leaves that I am used to. Does anyone know what it is? Is it ...
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1answer
17 views

White resin or powder on conifer needles

I often notice that certain conifers often have a whitish powder on what seems to be their youngest needles, giving them a blue green tint. Does anyone know what this is? Is it something excreted by ...
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1answer
51 views

Succulent weed identification

There is a succulent-looking weed growing in a crack in my driveway. What is it? Conditions: Dry, full sun, asphalt & gravel, no competition. Date: 2018-07-16 Location: Toronto, Ontario, Canada ...
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1answer
60 views

How do plants absorb CO2?

I see many repeated claims that plants absorb $CO_2$ from the air. $CO_2$ goes into the stomata, while $H_2O$ evaporates and leaves those same stomata. The $CO_2$ dissolves in the water in the plant ...
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0answers
36 views

Can you recognize this grape?

This gorgeous and sweet grape I collected in central Italy. I would like to know the name of this variety to get more information about it. I tried to compare with some pictures in Google but I am no ...
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2answers
95 views

Where can I find a picture of the inflorescence of Epipremnum aureum (golden pothos)?

Epipremnum aureum (golden pothos) is a very popular house plant - attractive and almost impossible to kill. Also, it is a flowering plant with flowers produced in a spathe up to 23 cm (9 in) long, ...
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2answers
148 views

Can you accelerate the growth of a plant by accelerating its surroundings?

I had this weird idea of making plants grow faster when I first visited an indoor nursery which used floodlights instead of sunlight. They turned on during the day and went off during night in cycles. ...
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1answer
93 views

Identify the fluff that I have found in tea

I have just opened a new pack of a black Pu'er tea that I've bought at the local store selling it by weight, and found a piece of fluff in there. To me it looks much like some kind of a bird fluff. It ...
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1answer
47 views

What's going on when roots turn green and grow into the air?

You're looking at a hibiscus and an orchid growing in the same pot. I'm curious why the hibiscus started growing green roots into the air. Or am I looking at a third plant that somehow made its way ...
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0answers
16 views

Ryegrass or couchgrass?

I am wondering if anyone can identify the longer bits of grass amongst the lawn in image above please?
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0answers
52 views

Genetics and evolution: Cross between plant

Three corn phenotypes plant-color booster, liguleless and silkless are all controlled by a single gene located on the same chromosome. In all cases, the wild type allele is dominant. A cross between a ...
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0answers
21 views

Name of the plant with greenish burgandy leaves

I found this plant with greenish burgandy coloured leaves in my campus. It looks a bit like Holy basil, but I am not sure. Please help me find it's name.
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0answers
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What does it mean for a type of plant to “vegatatively dominate” as opposed to “taxonomically dominate”?

I'm reading Plants and the K-T Boundary, by Douglas Nichols and Kirk Johnson. On page forty-seven the authors write the following: "By the Campanian many floras were vegetatively co-dominated by ...
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0answers
24 views

Could large plants grow out of large, solid rock in some way? What is primarily stopping them?

Roots of plants are known for being able to pierce through the firm soil and even solid stone to some extent. However, it occurred to me recently that I might be overestimating this ability as soil ...
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0answers
27 views

What are these balls in meshopyll cells? [Plant biology]

Anybody knows what are these small balls? The picture was collected with a confocal fluorescence microscope. These balls have a green epifluorescence and they are in mesophyll cells of rice leaves.
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0answers
79 views

Can anyone identify this seed or nut?

I found many of these nuts in a botanical garden in Sweden (outside, not in a greenhouse) but was unable to find the plant it belonged to. The garden has species from all over the world. I don't ...
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1answer
31 views

Differences between Heracleum mantegazzianum and H. sphondylium

I have heard about the hazards associated with Giant Hogweed and the trouble is when trying to identify it, it is very similar by the looks to normal hogweed. When fully grown, there is a big ...
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14 views

purple flower shiny leaved, tree

sorry about to fly cant add details ill edit later if necessary. perhaps found in ankara.
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2answers
68 views

Is each blade of grass an individual plant or not?

Sometimes when I do gardening, I notice multiple blades of grass appear fused together at the root, yet still appear to be segmented. When I look at images, I get some that suggest each blade is an ...
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1answer
31 views

Does the sun light have to have *direct access* to fruits to make them sweet?

I understand that sun light is needed for fruits to ripen. In the years with less sun light, the fruits are usually not so sweet. So the sun light is needed to make the fruits sweet. Where and how ...
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2answers
61 views

What plant is this? (Found in South Thailand)

Have tried to recognize with PlantSnap App, no results.
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35 views

What plant species does this leaf belong to?

I am a native of Northern India (Uttar Pradesh to be exact). What is this plant?
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1answer
35 views

How does one identify a seed's species & variety?

How does one identify a seed's species & variety, could it be done by some means of DNA or by use of a microscope? Say for example, I had a pumpkin seed, I knew that it was a "small sugar pumpkin"...
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1answer
73 views

What plant is this? (Found in Southwest Germany in June)

The picture was taken in Southwest Germany in June, and they covered the ground of a garden we were at...
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0answers
13 views

Change of stomatal density in plant in response to soil water stress?

I was wondering if the stomatal density (the number of stomata per unit of leaf) will be changed in the plant, say in Arabidopsis thaliana in response to soil drought stress? Please kindly share me ...
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1answer
12 views

Finding out the best concentration for my plant extract to be used as drug for diabetes

I am using plant extract of Ajuga parviflora and found out that it possess anti-diabetic properties by using alpha-amylase inhibitory assay. I used various concentration 250 µg/ml(29% inhibiton of ...
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1answer
91 views

What tree has three balls

I have seen this tree in Spain and Portugal. Its leaves and bark bring to mind the American Sycamore or London Plane Tree, but not exactly. Also, it has three spherical fruits, an arrangement I am ...
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1answer
45 views

Can herbs absorb harmful substances leached in water supply

I have small herb garden (parsley, coriander mint and basil) that is watered from below by a hydrophilic filter using capillary action from a reservoir. This filter allows water soluble nutrients to ...
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1answer
26 views

Is this plant with very asymmetric leafes Aegopodium podagraria (aka ground elder)?

I found this plant in a city park in Germany. The leaves were about 20cm of height; the smell of the squeezed leaves was a bit like carrots. The stems were edged. So I guess it was Aegopodium ...
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1answer
66 views

From where does the oxygen in glucose come in photosynthesis?

Is it carbon dioxide or water? I'm talking about the oxygen present in glucose and not the oxygen that is released after photolysis of water.
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1answer
133 views

Where does the mass come from when you grow plants in water?

How do plants like green onions seem to grow forever when put in jar of water? I understand that plants get a lot of their carbon from the air (as per this question) but surely they need more than ...
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0answers
59 views

Green caterpillars on gooseberry plants

I have green caterpillars that eat the leaves of my gooseberry plants: Unfortunately, I'm not able to take a better photo (due to camera limitations). Here's what I've observed about the insects: ...
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1answer
91 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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2answers
73 views

What is the name of this plant with leaves having two different shades of green?

I am trying to find the name of this plant. I am attaching the relevant images. Thank you for your help. Location: Hyderabad, India