Are 'bulbs' actually bulbs? Not always, although it is accepted parlance in the gardening world to call any root storage organ such. Actually, there are 'true' bulbs such as daffodils and tulips, corms like crocus, tubers as with dahlias, and rhizomes such as canna. Some are just plain confusing--iris, for example, depending on species, may arise from bulbs or rhizomes. And as a matter of interest, if you've eaten onion or potato this week, you've consumed a bulb and a tuber. Sprinkled turmeric in curry and that's rhizome while taro comes from a corm--which is also what a banana plant grows from
