Cotton.

Cotton is the source of human clothing, so foreign countries call it "the child of the sun", in China there is a poem dedicated to praise cotton: "May cotton show, August cotton dry, flowers warm, flowers cold." "Cotton belongs to jinkui, is native to the tropics, is a perennional shrub. It was later domesticated into an annual herb crop. Stems erect, sub-nutrition branched in the base, the upper part as the resulting branch. Flowers, will automatically change color, the beginning of white, and then yellow, afternoon red, the next day purple red, thank gray-brown.fruit is like a peach, so it is called cotton peach. Mature cracking, spitting like snow, hiding seeds in the middle. After gin processing, called cotton, used for spinning fabrics. The length of the fluff marks the merits of cotton.

cotton is generally white, after dyeing to weave colorful flower cloth. A cotton variety with five natural colors, white, beige, brown, purple and grey, has recently been discovered in Peru. Former Soviet scientists used hybrid methods to breed more than 20 kinds of colored cotton, such as red, green, blue and yellow. If there is a large amount of color cotton planted, you can directly weave a colorful cloth.

cotton fluff, in addition to spinning, is also an important raw material for the manufacture of explosives, plastics and medicinal cotton. Seed kernels can be squeezed oil, called cottonseed oil, can be eaten. Cotton stem ligament fibers can be made of rope and paper. The root skin of the flower can also be drugged, with strong, calming effect.