When the kumquats are divided into multiple species, the name Fortunella margarita (or Citrus margarita) is used for this group. The oval kumquat is also called the Nagami kumquat. The unusual feature of the Nagami kumquat is in the eating of the fruit. The fruit is eaten whole, skin and all. The inside is still quite sour, but the skin has the sweeter flavour, when eaten together it produces an unusual tart-sweet, refreshing flavour.