Kumquats are also known as kaki oranges. They are small and rounded and are green in color when ripe. The kumquat is related to the Citrus aurantium (orange) family of plants. They are used in a variety of dishes, as well as being dried and used as a tea substitute or juice squeezed from the kumquat skin. They can be used in a variety of dishes as they have a tart taste which balances sweet foods. Kumquats are rich in vitamin C, beta-carotene and folic acid, and have small amounts of B vitamins (thiamine, riboflavin and niacin). Kumquats are also an excellent source of dietary fiber.