According to Kew Royal Botanical Gardens, the scientific name for the radish is Raphanus sativus L. Many varieties of this edible root vegetable have been cultivated by humans over thousands of years. Although difficult to prove due to insufficient archaeological evidence, it is likely that radishes originated in southeast Asia.
The generic name, Raphanus, comes from the Greek words "ra" and "phainomai," meaning "quickly appearing." This is in reference to the relatively fast germination of the plant. Summer radishes can sprout in as few as three days from initial planting. Radishes can be grouped into four categories, classified by their preferred growing seasons.
Radishes are a member of the family that includes: turnips, cabbage and horseradish.