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Patent Pending Asparagus or garden asparagus, scientific name Asparagus officinalis, is a spring vegetable, a flowering perennial[1] plant species in the genus Asparagus. It was once classified in the lily family, like its Allium cousins, onions and garlic, but the Liliaceae have been split and the onion-like plants are now in the family Amaryllidaceae and asparagus in the Asparagaceae.