Questions tagged [flowers]

Reproductive structures of angiosperm (flowering) plants.

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2
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0answers
35 views

What was the first known flower meant for a flying pollinator insect?

I think flower ancestors were colorless and sugarless. The first flower then chanced upon using insects by attracting them. Has this flower been discovered and from what ancestors did it evolve from?
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1answer
1k views

Identification of a purple flower

What is this purple flower? Picture taken from a garden in India.
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2answers
175 views

What flower is this?

I received this flower as a gift. So far, I couldn't identify what flower it is. My family thinks it may be either some sort of Clematis or an Ipomoea purpurea. The main reason I want to identify ...
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1answer
95 views

Can anyone id this flower

I took this photo on Madeira, in a botanical garden.
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1answer
3k views

How do the flowers of Diphylleia grayi become transparent after rain?

Known as the skeleton flower, its flowers turn transparent in rain. How does it do so? How can it gain transparency in rain when water is already present in flower? Or is it because other components ...
6
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1answer
7k views

What happens to tube nucleus of the pollen tube after fertilisation?

Background: Pollen tube contains a vegetative cell and a generative cell. The vegetative cell contains the tube nucleus, and the generative cell contains two male gametes. The two male gametes fuse ...
5
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2answers
578 views

What would be a reason for a tree to have flowers of different colors?

The spring is here and the cherry trees along my street are blooming again! Some trees have white flowers, some dark pink. But then... there're these trees which are all white yet just a few flowers ...
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0answers
77 views

Why does abnormal mitosis takes place in the cells of tapetum?

I know that the tapetal cells present in the anther are binucleate. I also know this means that after karyokinesis the cell does not divide itself and instead form a syncytium. This occurs due to ...
5
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1answer
142 views

What plant is this, seen at the Allan Gardens?

I tried a couple of apps on my phone, but I could not identify this flower and plant species. These are at the Allen Gardens Conservatory, at the beginning of Spring in Toronto.
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86 views

Why Japanese cherry trees blossom so early in spring?

My understanding is that flowers' main benefit are the insects which attracted to the shape/taste of these and facilitate cross pollination. Yet the Japanese cherry trees start (and end) to blossom (...
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1answer
631 views

What kind of flower is this?

I was in my garden a few days ago and found the flower shown in the pictures. Can anybody tell me what this flower is? Location: Germany / northrhine westfalia Date: February 2017 Season: Winter [...
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1answer
156 views

Why do plants flower in different seasons?

I know how it is controlled (photoperiodism), but I wonder why all plants don't start to flower in spring? Is it connected with ecological niche?
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3answers
956 views

Identifying three species of Datura

I have found a large, wild patch, some 200m long, of mainly Datura Stramonium, in our street. I have always been keenly interested and well read on the shamanic, and - very rare - medicinal uses of ...
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1answer
132 views

Why would a flower evolve such that a particular pollinator cannot pollinate it?

I went on an interpretive trail today and came across a wild flower sign. It said that some flower species evolved such that they can not be pollinated by humming birds as they are shaped such that ...
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1answer
149 views

Identify this roadside plant in Montserrat, Spain

Photographed in April; growing abundantly on the side of a rocky path in Montserrat, Spain. Up to maybe 1 foot (30 cm) in height.
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1answer
48 views

Name of this flower?

i'd like to know the name of this flower.
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1answer
2k views

Do flowers transpire?

I have googled this out but no where found a satisfactory answer. The definition of transpiration states that it is the evaporative loss of water from the aerial surfaces of the plant but I am really ...
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2answers
10k views

Why do pink rain lilies flower only after rains, and not from being watered?

We have pink rain lilies (Zephyranthes carinata) in the garden. In my personal experience, I've found that they always flower, without exception, shortly after rains. However, there are roughly ten ...
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1answer
1k views

Any idea what this red plant is?

I live in South central Indiana, US, and these have just started appearing in the grass in my yard. I just bought this house last fall so I've never seen them. Anyone know what they are? Are they ...
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What is wrong with this flower?

Today morning I was surprised to see this flower as it has four normal pale orange coloured petals and one bright red one. This is a flower of Hibiscus and all the flowers of this plant have the ...
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0answers
56 views

Which species of Agave are known to have inedible flowers?

It is well documented that many species of Agave have edible flowers, however I keep coming across statements to the effect that "most species" of Agave have edible flowers. This implies that it is ...
6
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1answer
469 views

What is the name of this plant, from Bangladesh?

This is a small plant from my backyard. I have found the flower closes in the evening.
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1answer
4k views

When does meiosis occur in flowering plants?

At what point does meiosis occur during the development of a flower?
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3answers
2k views

What is the name of this flower?

This is from Bangladesh though I am not sure it's native here
39
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1answer
27k views

Why does a coconut have exactly three “holes”?

Why do coconuts have exactly three "holes", as seen in this picture? A theory says: As coconut is a sibling of palm, somehow long time ago, three palms were in a same husk. Based on evolution theory, ...
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1answer
146 views

Can anyone identify this plant from Bangladesh?

I have taken the picture from an agriculture university in Bangladesh.
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2answers
166 views

Can anyone ID this flower plant by the photo?

Can someone identify this plant? It has big red flowers when it flowers! Not sure if it is native, but it is in my grandmothers garden in Vancouver, British Columbia, Canada.
6
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1answer
396 views

What is the name of this flower?

A flower has grown on a leaf in our garden. What is the name of this flower? Give some description.
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1answer
160 views

What is this flower?

I was in Germany recently, and I saw again a flower that I'd only ever encountered before at Meijer Gardens. It's interesting to me because I'd never seen a flower with color variation in only the '...
2
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1answer
507 views

Can anyone Id this flower?

Small pink flower, started out as tiny buds, leaves look almost like Maple leaves..
5
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1answer
99 views

What is this plant on the photos?

Found in Kustaankartano, Helsinki, Finland in June 2015. (for closeup view, copy image URL and open in new window and then zoom in)
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1answer
424 views

What is the name of this flower? The photo was taken in the Okanagan Valley, British Columbia

This little flower was growing on dry ranchland in Kelowna, it flowered in April:
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1answer
3k views

What is the trigger of pollen tube formation when the pollen is on the stigma?

What is the mechanism of pollen tube formation when the pollen is close to the stigma ? Is it because of chemotaxis? In other words, is the growth triggered by some chemical substance that is ...
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342 views

Is the number of stamens always 9 for geranium?

We are studing in class the reproduction of plants. We start the lesson by observing some components of flowers, it was the Géranium. First of all we start counting the number of sepals , petals and ...
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1answer
327 views

Identification of a plant (in a pot)

I have in my flat a plant which sometime make strange flowers. When the start it looks like plastic stars: Then the flowers are opening after few days and looks like this: The smell is a bit ...
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0answers
47 views

Is (are) there any crucial gene(s) for the formation of flower in flowering plants? [closed]

I am interested in qualitative (flowers of some plants have petal or sepal, but some plants have not) and quantitative (number of flowers of plants) differences between flowers of different plants. ...

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