A tour of the history of onions in different cultures from ancient Egypt to modern times.

Research into flavor of Alliums using biochemical and molecular genetic methods, led by Dr. Hamish A. Collin and Dr. Meriel G. Jones.

Articles about cultivated onions from Purdue University.

Cultivating onions: fertility, planting, pest control, storage, varieties.

A very complete guide for onion production. University of Georgia.

Guide for producing commercial green onions. University of Georgia.

Description, botanic details, cultivation, uses, and range.

Plants for a Future: description, botanic details, cultivation, uses, range.

Onion's main constituents, origin, ethymology, and how it is used for cooking around the world.