Introduction to roses, also known as Rosa roxburghii, Fallen Flowers, Assassin and Heart-piercing Rose. Shrubs of Rosa in Rosaceae. As a crop, its flowers are mainly used for eating and refining rose oil, which is more valuable than gold with the same weight, and is used in cosmetics, food, fine chemicals and other industries. The three outstanding figures in Rosaceae-Chinese rose, Chinese rose and Chinese rose-are all Rosa plants. In Chinese, people are used to calling a single variety with a large flower diameter a rose, a small cluster a rose and a refined one a rose. But in English, they are all called roses. According to the current officially registered rose varieties, there are about 30,000 kinds. In addition, cut roses are actually Chinese roses. "Bulgarian rose" is actually a Turkish rose. Authentic "Bulgarian rose essential oil" is actually Turkish rose essential oil. & lt/B& gt； Roses belong to Rosaceae, Rosaceae, deciduous shrubs with prickly branches. Odd pinnate compound leaves, 5-9 leaflets, oval, spiny, wrinkled on the surface, most stipules and petioles united. Flowers are solitary and fragrant in purple. The cut flower "Rose" is actually a Chinese rose with pink, red, yellow and white colors. Now there are more colors, such as blue, black and so on. Chinese proper names of classification 1 rose. Generally refers to any plant of Rosa. In the industry of fresh cut flowers, especially modern Chinese rose. Sometimes it also refers to Turkish rose Damascus rose, French rose gallica, Venice rose centifolia and so on. Used to refine rose perfume. At present, there are more than 100 kinds of "roses", including white roses, red roses, blue roses, pink roses, pale pink roses, yellow roses, double-color roses and so on. In fact, most of the "roses" are new varieties of "roses" developed by improving several common "roses". There are not many original species of roses, but after cross breeding, at least 1.5 million species have been officially registered. According to the size of "rose" (actually rose), it can be divided into four categories: big wheel species, middle wheel species, small wheel species and liana species. At present, there are the most varieties of "roses" in the world, with large flowers and one flower per stem, representing peace and Dior. Widely used in middle rotation, the flower size is about 6 ~ 10 cm. The representative species are Sequoia couple and Jolina. The flowers of the little wheel are only about 1.5 ~ 2.5 cm, with small inflorescences and short plants, which can be used as small potted plants or flower beds for beautification. Representative varieties are Little Sunset and Starina. Lianas, which are derived from mating and propagation of lianas or non-lianas, can reach 4 ~ 6 cm in height, and have no climbing ability, so it is necessary to fix branches manually.