alliaceae allium allium fistulosum bunch bunching onions bundle cultivars edible escallion green onion green shallots greens mild moist onion onion sticks raw Roots salad onions salad vegetable scallions soup vegetable spring onions stir fry vegetable tangle vegetable washed water welsh onion wet white allium-fistulosum bunching-onions green-onion green-shallots onion-sticks salad-onions salad-vegetable soup-vegetable spring-onions stir-fry-vegetable welsh-onion aromatic beneficial bulb circles condiment cooking culinary cultivar cut flavonoids flavor flavoring flavour flavouring food fragrant fresh garden onions health healthy layers medicinal nutritious odor odour onions pungent purple purple onion red Red onion rings round skins Spanish onion tangy tasty textures veg vegetables annuals Asparagus brown-onions bunches carrots cauliflower color colors colour colours common-onions cutting-board fruit kent-pumpkin kitchen leaves peel peeling pumpkin surfaces uncooked variety