Onion, White onion, Allium cepa, Studio shot of vegetable.

Onion, Allium cepa 'Showmaster', Close cropped view of an onion with the skin removed showing the white flesh.

Onion, Allium cepa, Side view of two onions growing in a vegetable plot with other vegetables and a white picket fence behind.

Allium, Allium christophii, black and white opening flower appearing light against a solid black background.

Onion, Pearl onion, Allium cepa.

Allium, Allium cristophii.

White Flag Onion, Allium canadense 'White Flag'.

Onion, Allium cepa.

Onion, Pearl onion, Allium cepa.

Onion, Spring onion, Allium cepa.

Onion, White onion, Allium cepa.

Onion, Spring onion, Allium cepa.