Answer:Onions, garlic (Allium sativum) and shallots (Allium cepa var. aggregatum) are grown from bulbs. While they can be grown from seed, many gardeners prefer to speed up the process by starting their plants from bulbs, which are smaller undeveloped forms of the plants.
This character trait is known as homoplasy. the definition of homoplasy that two or more species share a character, but they did not descend from a common ancestor.
This trait is known as convergent evolution, or convergence.
