Difference between calla lily rhizome and calla lily bulb

Question

How to tell difference between calla lily rhizome and canna lily bulb?

Answer 1

The bulb, or more properly called the rhizome, is the heart of the calla lily and the location from where the plant emerges. Although not exactly a root, the bulb resembles a very large and thick piece of root from which all the smaller roots will grow out of once it is in the ground.http://www.callalilyguide.com/calla_lily_bulbs.html