The discovery that scurvy, a debilitating illness caused by vitamin C deficiency, could be treated with citrus fruit ...

Is babloos naranga the same as grapefruit, or is there more to these citrus cousins than meets the eye?.Grapefruit vs babloos ...

Considered one of the original citrus fruits from which all others are ... A darling of the culinary world, Meyer lemons are a lemon-orange hybrid. Rounder than Lisbons or Eurekas, they also ...

Sumo oranges, or dekopon citrus, is a hybrid of three citrus fruits that offers a few benefits. The vitamin C content in Sumo oranges helps lessen the severity of colds and makes the fruit a ...

A version of this story appears in the February 2017 issue of National Geographic magazine. Citrus, in many ways, stands alone. So many cultivated species have come from so few primary ancestors.