Why are there no blue flowers, what flowers are blue, what are the blue flowers

The leaves and fruits of plants contain chlorophyll, anthocyanins, and carotene contained in some plants, which are all green and red, and the branches of trees are brown, except for very few flowers, most of the flowers are white, red, and yellow, red and yellow because the flowers contain carotene and other pigments, and the white flowers are because the flowers do not contain pigments. Therefore, blue flowers are particularly precious, and very few flowers are naturally blue, and most of them are carefully cultivated. Why do plants have so many colors but not blue?

Because the role of green leaves is mainly to provide nutrients for flowers and trees, and chlorophyll is required for photosynthesis. The role of flowers and fruits is to spread offspring, flowers to spread pollen, fruits to carry seeds, which must have bright and warm colors to attract animals and spread pollen and seeds for plants. In order to survive, animals must escape stronger animals by dodging, and hiding in plants is a good choice.

If the body color is similar to that of a plant, it is well hidden.

Blue and green are closer to the natural color of the leaves, and it is slightly more difficult to be discovered by pollinators, so the pressure on its selection is also greater, which is not conducive to reproduction and evolution, so there are fewer blue-green flowers. Among insects, the compound eyes of most insects are often insensitive to blue-green induction. In addition, the flower color is also related to the light wave, in the upper layer of the ecological community of the plant blue and green flowers less, and in the bottom or lower layer of the more, the upper layer of the plant is sunny, often overheating effect, the flower in order to protect itself often reflects the long wave of yellow, red and orange with higher energy, and in the lower layer of the ecology with less light, the leaves reflect less energy of short-wave blue-violet light, so there is often the existence of blue flowers.

This is also related to the phenomenon of more blue flowers in temperate plants, that is, the need for self-protection and regulation of flowers in energy. There is also a genetic reason that most of the plants with blue flowers need highly evolved plants to have them, which is also related to the anthocyanins required by blue, and most of the pigment reactions of blue need to form pigment glycosides under the action of blue genes and appear under the action of co-pigments, and even have special requirements for the pH value of vacuoles, that is, blue can be visible below alkalinity. Most of the pigment glycosides are not like anthocyanins, which exist in most plant color development mechanisms, and they are an evolutionary pigment of anthocyanins, which determines the reason why jacaranda is often present in higher evolutionary plant groups.

In addition to the above-mentioned reasons, it is also related to the living environment, and there are more jacarandas in the high altitude areas with strong ultraviolet rays in the mountains, and hydrangeas growing in aluminum-containing soil often appear blue.

Blue flowers: duck plantar grass (common name butterfly flower).

Forget-me-not (scientific name: limonium sinuata) morning glory (available in pink, pink-purple and blue).

Platycodon blue impatiens.

Shengdan furnace African violet [some varieties: bluepeak, blue flowers, white edges; double delight, flower blue; bluecaprice, pale blue flowers; Showqueen of foliage species, with blue flowers with wrinkled edges and yellowish-white markings on the leaf surface].

Lavender (lavender perennial evergreen shrub or herb, leaves opposite, leaves silvery-gray or green, inflorescence spike-like, flowers blue, blue-purple, purple, white, etc.) ）

Malan (spring flowering, blue flowers, 1-3 flowers born at the tip of the flower stem. Blue periwinkle (blue pearl bluepearl, flower blue, white eyes.) Pansy. White English Vitex.

Wisteria Tongquan grass.

Comfrey flowers Artemisia viridis (flowers blue or purple, single or raceme, apical, petals yellow or light blue).

Tsuneyama purple dew grass.

Forked leaf blue (also known as silver plum grass).

Divine vanilla blue-edged hydrangea (dark blue, marginal flowers blue or white) Tuding cinnamon coleus grass.

Chicory English red.

Duck tongue grass. Horse Rush.

Why do you want to check it out when you go buy a hundred thousand, baby!! Depressed, there are ...... questions asked

1. Blue flowers include forget-me-nots, blue roses, blue roses, blue tulips, orchids, and morning glories.

Duck tongue grass, hyacinth.

Platycodon, bunch blue, African violet, large rock tree, hydrangea.

Wait. 2. Many flowers have a variety of colors, and the above flowers can bloom blue flowers. When it blooms, the flowers are colorful and very ornamental. However, in order for them to bloom as scheduled, they must provide an environment conducive to growth and provide sufficient nutrients.

It is because the cell fluid of safflower contains anthocyanins that are turned from glucose, and when the cell fluid is acidic, the acidic anthocyanins will reflect the long red light wave and appear red, the stronger the acidity, the redder the color, which is the reason for the red flowers.

Both safflower and red leaves contain anthocyanins that are made from glucose in their cell fluid. When the cell fluid is DAO acidic, the anthocyanins appear red, and the more acidic, the redder the color.

When it is alkaline, anthocyanins appear blue, and the alkaline is stronger, becoming blue-black, such as black chrysanthemum, black peony, etc. And when it's neutral, it's purple. Thousands of purples and reds, red and blue, are all anthocyanins shown in different acid-base reactions.

In addition to safflowers, there are also yellow and orange flowers. Orange is similar to the color of citrus, pumpkin and other fruits, and the most typical is carrots, so the pigment that expresses this color is called carotene. There is the size of the carotene to decide whether it is orange or yellow.