Onion flower

 Onion flower:

Common name : onion flower

Biological name : Allium cepa ( from Latin cepa means "onion")

The onion plant has been grown and selectively bred in cultivation for at least 7,000 years. It is a biennial plant, but is usually grown as an annual.

Uses:

1)Onions have particularly large cells that are readily observed under low magnification. Forming a single layer of cells, the bulb epidermis is easy to separate for educational, experimental, and breeding purposes.

2)Onions are toxic to dogs, cats, guinea pigs, and many other animals.

3)Onion skins can be boiled to make an orange-brown dye.