What kind of plant does coffee belong to?-what kind of plant is coffee grounds suitable for growing?

In fact, the Arabs began to grow coffee in 525 BC, and chewing fried coffee beans became popular in the Arab region. In 890 AD, Arab merchants sold coffee beans to Yemen, and Yemenis made coffee beans into drinks for the first time. In the 15th century, coffee was introduced into Europe, Asia and soon into America. By the 18th century, coffee was widely grown in tropical and subtropical regions of the world and became one of the three major drinks in the world. Coffee ranks first among the top three beverages in annual sales, three times as much as cocoa and four times as much as tea. Although coffee has been cultivated in the world for more than 2000 years. However, coffee has been cultivated in China for only a few hundred years. In 1884, Taiwan Province began to introduce coffee.

At the beginning of the 20th century, overseas Chinese brought coffee back from Malaysia to grow in Hainan Province. Later, tropical and subtropical provinces in the south began to grow plant coffee one after another. Although the cultivation time is short, the coffee from Hainan and Yunnan provinces in China has excellent quality and unique charm, so it enjoys a high reputation in the world. After some foreign businessmen buy it at a low price, it is processed and sold to the international market. It has become an expensive world-class drink, especially the small-grain coffee grown in Yunnan Province. Because of the large temperature difference between day and night in Yunnan, it is conducive to the accumulation of substances in it. Therefore, it tastes strong but not bitter, fragrant but not strong, oily and fruity, so it is praised as "the best quality coffee in the world" by coffee merchants at home and abroad.

Coffea L. Coffee, Rubiaceae, 40 species, distributed in the tropical regions of the Old World, especially in Africa. Coffee is an important tropical crop, it and tea, cocoa are one of the three major drinks in the world, especially in Europe and the United States, drinking coffee is very common, with exciting, digestive functions. At present, the country that grows the most coffee in the world is Brazil. There are 5 species introduced and cultivated in Taiwan, Yunnan, Guangdong and southern Guangxi, but mainly the following three species: 1. Large-grain coffee C.liberica Bull, native to Liberia in Africa, is suitable for cultivation in lowlands below 300m above sea level; drought resistance, insect resistance and strong flavor; 2. Medium grain coffee C. canephora Pierre, originally from Zaire in Africa, is suitable for cultivation at an altitude of 300 meters above sea level and 700 meters above sea level. it is not resistant to drought and wind, but it has high yield, good quality and is not easy to fall off after ripening. Small-grain coffee C. arabica L, native to Ethiopia, Africa, is suitable for cultivation in the highland of 600,000m above sea level. It is more tolerant to low temperature, but has poor resistance to rust. Coffee will be harvested 2-3 years after planting, rich in 6-8 years, can be harvested for 20-30 years, and well managed for 50 years. Shrubs or small trees; leaves opposite, sparse 3 branches whorled; stipules between petioles, persistent; flowers solitary or forming axillary bouquets, white; calyx tubes short, tubular or turbinate, calyx eaves short, truncated or 4-colored 5-toothed; Corolla salverform, 4-color 8-lobed, lobes spreading, rotationally arranged, throat sometimes hairy; stamens inserted at or below crown throat, filaments short or absent, anthers dorsifixed near base; disk swollen. Ovary inferior, 2-loculed, with 1 ovule per locule, style linear or slightly thick, stigma 2-lobed, linear or subulate; fruit a berry; seeds 2, horny, from which commercial coffee is made.