Orange, yellow orange, golden orange, golden ball, swan shell.
Orange: It is the fruit of the orange tree, a citrus plant in the family Rutaceae, also known as yellow fruit, tangerine, golden ring, and willow ding. Orange is a citrus fruit with high edible and medicinal value. Oranges originate from Southeast Asia. Orange trees are small trees. The fruit can be peeled. Oranges have a long history of cultivation. Their peels contain aromatic aromas, and the ancients used them as incense substitutes. Seeds of this genus are found in ancient tomb artifacts from the Western Han Dynasty unearthed at Mawangdui on the outskirts of Changsha, Hunan Province. According to research, they are believed to be the seeds of oranges, which are thicker and slightly angular, and have turned gray-black in color. It is believed that they were used as incense to accompany burials and to preserve the integrity of corpses. The seeds and other similar items are placed on the west side of the coffin, while the food items are placed on the east side.
Distribution range: Gansu, southern Shaanxi provinces, southern Jiangxi and Gansu, Sichuan, Hubei, Hunan, Jiangsu, Guizhou, Guangxi, Guangdong and high mountain areas in northeastern Yunnan, wild and cultivation. It is not produced south of Wuling. It is a kind of citrus that is widely distributed in the north. It is cold-resistant and some varieties are semi-deciduous.