what are the five different types of vegetables?
['Leafy green – lettuce, spinach and silverbeet.', 'Cruciferous – cabbage, cauliflower, Brussels sprouts and broccoli.', 'Marrow – pumpkin, cucumber and zucchini.', 'Root – potato, sweet potato and yam.', 'Edible plant stem – celery and asparagus.', 'Allium – onion, garlic and shallot.']