Botanical Name: Citrus sinensis. Other Common Names: Orange, Portugal orange, China orange, appelsin (Danish), apfelsine (German), naranjo (Spanish), zhi shi (Chinese). Habitat: The origin of sweet orange is somewhat unclear, but it is probably native to southern China and Vietnam as the plant has been cultivated in those countries for thousands of years. The tree was first brought to Europe after the year 1400 and much later to America. Today it is the most cultivated citrus fruit in the…