A bulb is a storage organ (and/or reproductive organ) in which nutrients are stored in mostly fleshy cataphylls
bases) which are arranged on a shortened stem
. Mostly, the bulbs are formed underground (e. g. in Allium
– bulb). However, daughter bulbs
may also develop aboveground (e. g. in the inflorescence
of Allium oleraceum
– Field Garlic).