Questions tagged [flowers]
Reproductive structures of angiosperm (flowering) plants.
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Questions regarding the four pollination mechanisms of papilionaceous flowers
I want to understand the four mechanisms of pollination in papilionaceous flowers: pump/piston, explosive, valvular and brush.
The topic is lightly touched upon in this part of a Wikipedia article, ...
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Single flowers and double flowers on the same plant?
A friend of mine found a strange plant of begonia that at first had regular flowers. After a while it started producing double flowers and has now a mixed inflorescence:
The double flowers look like ...
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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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Has anyone confirmed Darwin's theory that nectar began as something "injurious" to sap?
In "Origin of Species", Darwin says (I have added bold for emphasis):
Certain plants excrete sweet juice, apparently for the sake of
eliminating something injurious from the sap: this is effected,...
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Ideal examples of Magnoliophyta Lilianae
What are the ideal examples of Magnoliophyta (Lilianae-to be precise) for a teacher to show students?
And, does anybody know exact name of this flower? Picture
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Does hybridizing a specific flower affect the offspring?
If among several flowers within a plant, there is a specific flower that is slightly larger or brighter or has an extra petal, will this trait be possibly passed on to the offspring? In other words, ...
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Can anybody identify this flower for me?
One single flower on small 2 year old tree with alternate leaf arrangement
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What is a 1-flowered raceme?
PlantNET describes the inflorescences of Daviesia acicularis as:
Racemes reduced to 1 flower
How is a 1-flowered raceme different from a single flower?
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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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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 ...
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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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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 ...
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What kind of yellow flower is this?
Shot in a garden in Haliburton, Ontario, Canada on August 6th, 2020. Flowerhead size approx. 3" diameter across.
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What makes the flowers glow?
I had learnt in a plant biology course that, all the flowers are actually originating from leaves, with several mutations. I wonder what makes a flower sparkly like this.
Photos belong to a ...
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What is this strange flower which I found on an upheaval in Rhodes (Greece) in July?
It looks like it carries berries instead of blossoms. Is it actually a flower or rather a baby tree? I found it in a Google image search (see here: https://goo.gl/images/vfBDSP), but there was no ...
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Flower Identification: Pyrenees, France
I'm trying to identify the white flowers in this photo. Location is in the Pyrenees mountains near Luz-Saint-Saveur in France. The image was shot in early September of this year. Any help is greatly ...
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Hypanthial disc
Can anyone illustrate what the hypanthial disc is? It is descriped throughout the key to Rosa in the Flora of North America. I think that I understand that the hypanthium is the hip which is formed ...
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Determine planar phyllotaxis characteristics
Is there any method to fast and precise count the number of spiral and the divergence angle on a planar phyllotaxis pattern?
The example of spiral phyllotactic arrangement of emerging flowers on ...
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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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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 ...
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Help identifying a part of a flower
I researched about floral diagrams and this is what I found:-
This is floral diagram of Theobroma cacao. I managed to identify others but this part near the stamens was not found anywhere.
Also the ...
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Do four-leaf clovers have some disadvantage in reproduction?
As far as I understand, four-leaf clovers are caused by genetics, so when reproducing, they should produce four-leaved children. I haven't found any disadvantages of four-lead clovers (e.g., ...
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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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