ornamental onion or allium bulbous herb monocotyledonous flowering plant with round flower head composed of dozens of blooming

ornamental onion allium herbaceous geophyte perennial bulbous herb monocotyledonous flowering plant single flower forms umbel top leafless stalk shape round head composed dozens open blooming star shaped light purple flowers growing urban home garden warm sunny summer day nature bloom blossom flora wild meadow wildflower closeup macro color beauty field spring