1, different places of origin: red onion is native to Palestine, in the Crusades to Europe; hairy onion is native to Japan, introduced from Japan to Jilin in 1931, also known as "ghost onion".
2, the appearance of different: red onion similar to garlic, each clove has a red to deep purple coat package; hairy onion is smaller, close to the round, the growth of a hairy onion will bear six to fourteen onion head.