Persimmon in color. The calyx generally remains attached to the fruit after harvesting, but becomes easy to remove once the fruit is ripe. The ripe fruit has a high glucose content and is sweet in taste. Like the tomato, persimmons are not commonly considered to be berries, but morphologically the fruit is in fact a berry. While many species of "Diospyros" bear fruit inedible to humans or only occasionally gathered, the following are grown for their edible fruit: Asian or Japanese persimmon ("Diospyros kaki") is the commercially most important persimmon, and is native to Japan, China, Korea, Myanmar and Nepal. It
Blue tomato stems, where they are not eaten and would not provide any health benefit. With this in mind, researchers at Oregon State University have produced blue tomatoes using conventional breeding techniques, cross-pollinating domestic tomatoes with wild varieties that possess the "Anthocyanin fruit" (Aft) allele. As of the 2012 growing season, Oregon State University developed blue tomato seeds became commercially available under the cultivar name "Indigo Rose". The blue color is produced mostly by the anthocyanin petunidin on the outside of the tomato where the fruit is exposed to direct sunlight. The shaded side of the fruit is green when unripe, red