Why are there no black flowers? Why are black flowers rare?

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.

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Why are there so few black flowers?

Because: black absorbs heat quickly, and will absorb all color light, 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.

There are black flowers, but they are not pure black as imagined, and black flowers are generally not easy to attract bees and butterflies, so the spread of pollen is more difficult, and it can easily lead to extinction.

For self-protection, flowers must reflect the long waves of sunlight with high heat, absorb visible light with shorter wavelengths, or reflect all seven light waves.

There should be! Are you sure about this?

The natural world is complicated, and in the huge plant world, there are all kinds of exotic flowers. Every spring, all kinds of flowers bloom and decorate nature for people to watch and enjoy. However, black flowers are rarely seen among the purple and red flowers.

After a long period of observation and experimentation, the relevant experts finally figured out the reason. Originally, sunlight was composed of seven types of light, namely red, orange, yellow, green, blue, indigo, and violet. They have different wavelengths and different amounts of heat to contain.

It is well known that the tissues of flowers, especially the petals, are generally delicate and susceptible to high temperatures. There are more red, orange and yellow flowers in nature, because they can reflect the red, orange and yellow light that contains more heat in the sun, and do not cause burns. On the other hand, black flowers can absorb all the light waves, so that the flower tissue is susceptible to burns when it heats up quickly in the sun.

Therefore, in the long-term evolutionary process, after natural selection, there are fewer and fewer varieties of black flowers, and there are few left. Experts counted more than 4,000 species of flowers and found that only 8 flowers were black. There are so few black flowers in the plant kingdom, which makes black flowers regarded as a precious variety by horticulturists and a treasure among flowers.