Why are black flowers rarely seen?

Why are there so few black flowers?

Why are there no black flowers.

There are also black flowers in nature, such as black peony, black chrysanthemum, etc. Since there are few black flowers, rare and expensive, black peony and black chrysanthemum have become treasures. In addition to the black flowers, there are many other colors of flowers, which are colorful and decorate nature.

Why are there so few black flowers? In the petals, there are generally two substances, one is called anthocyanins and the other is called carotene. Anthocyanins are very unstable in nature, red when encountering acids, blue when encountering alkalis, blue-black when encountering strong alkaline substances, and purple when neutral.

There are also some flowers that are yellow, orange-yellow, and orange-red. Their petals contain carotene. The color of the flower is related to the substance contained in the petals, and the black factor can not be produced in the plant, and only in special cases may there be a black tendency, so the black flower is very rare, and the simple black flower does not exist.

This is a physiological factor for the low number of black flowers.

But why doesn't nature cause black factors in plants? Mainly because of the sun's light, if the flowers are black, then they will absorb the energy of all wavelengths of sunlight, which is easy to be burned by strong sunlight, so natural selection determines that there are very few black flowers.

Someone here answers.

In fact, there are no black flowers, the main reason is not that it does not absorb heat, if it is that long, the plant will adjust itself and will not let the sunlight damage itself.

The fundamental reason why there are no black flowers comes from what is the function of flowers? That is, why do plants bloom? Flowers are one of the means of plant reproduction, and plants produce bright flowers in order to attract insects to come and flutter the flowers, so as to teach pollen to themselves.

Well, this problem is in junior high school physics, the reason why people see color is because the color of sunlight shines into the flower and is formed by the flower absorbing color light and then reflecting, and black will absorb all color light, it is all color light, black absorbs heat quickly, and is not suitable for the growth of plants. Death is even more likely, and as a result, they are jigged in the long course of natural selection.

Many flowers in life are bright, because bright colors can reflect light, and black absorbs light, which will cause delicate petals to be damaged, so most of the flowers we see are bright or white.

Black flowers are susceptible to sun burns.

Because black absorbs heat, and black flowers are so heat-resistant.

There are two reasons why black flowers are rare:

1. Black will absorb a lot of heat from sunlight, and the petal tissue is easily burned by high temperature.

2. Most of the flowering plants of Daqiao pants are reproduced offspring, and they have to rely on insects, and the black flowers are too dark because of their dark color, and it is difficult to attract the attention of insects. So under long-term natural selection, the black flower gene is gradually eliminated.

The black flower absorbs all the light waves, heats up quickly in sunlight, and the flower tissue is easily damaged. Therefore, after a long period of natural elimination, there are not many black varieties left.

In addition, black flowers are difficult to attract insects, which is very detrimental to their pollen spreading, so black flowers are gradually eliminated by natural selection.

Black flowers are rare, mainly because the color pigments contained in the petals of most plants are red, yellow, blue and other color slag, and there is very little melanin. Moreover, the color of the flower is very important for the pollination of the flower, as it attracts pollinators such as insects and helps in the formation of flower fruits. However, some plant varieties have been modified to produce black flowers, such as black roses and black lilies, but these black flowers are not naturally present.

In addition, black flowers are often endowed with some mysterious and magical symbolic meanings, so they are often selected or used in artificial cultivation.

Because black absorbs heat, if there are a lot of black flowers, they are very easy to die of heat in the middle of the day, so black flowers are rare.

We live in a world of violet, colorful flowers, but we see very few black flowers.

Botanists counted the colors of more than 4,000 flowers and found that there were only 8 black flowers, and they were not pure black, but only purple. Why is this happening? Originally, the color of the flower is related to the reflection and absorption of sunlight and petals, and sunlight is composed of 7 colors of light.

Depending on the color of light, its thermal effect is also different. A colored opaque object reflects light of the same color as it and absorbs light that is not the same color as it, and a black object absorbs light of various colors. The petals are relatively tender, and in order to survive and avoid being damaged by high temperatures, they absorb light with a weak thermal effect and reflect light with a strong thermal effect.

That's why we see more red, orange, and yellow flowers, and fewer blue and purple flowers. If you absorb 7 colors of light, you have a greater chance of being damaged by high temperatures, and it is more difficult for flowers to survive, so there are few black flowers.

Taken off the net

Black flowers are very heat-absorbing and do not survive easily.