Onion- Bulb

Onion bulbs vary in shape and size, but most are round or slightly flattened in shape. Onions can easily be identified by their distinctive, pungent smell.

Photo courtesy of National Garden Bureau

Onion bulbs are commonly yellow, white, or red.

Photo courtesy of National Garden Bureau

Thin, papery layers form an outer protective covering for the bulb.

Onion- Bulb

Onion bulbs vary in shape and size, but most are round or slightly flattened in shape. Onions can easily be identified by their distinctive, pungent smell.

Onion bulbs are commonly yellow, white, or red.

Thin, papery layers form an outer protective covering for the bulb.

© 2000 Rosie Lerner, Purdue University