Ornithogalum umbellatum

Ornithogalum umbellatum, the garden star-of-Bethlehem, grass lily, nap-at-noon, or eleven-o'clock lady, is a perennial bulbous flowering plant, native throughout most of southern and central Europe, north-western Africa and south-western Asia. In North America, it has escaped its cultivation as a garden ornamental and can be found in many areas.