herbaceous perennial flowering plant with underground bulbs, belonging to the genus Ornithogalum of the family Asparagaceae. The Latin name Ornithogalum of the genus, meaning "bird's milk", derives from the Greek, while the species name narbonense refers to the French town of Narbonne.
Ornithogalum narbonense reaches on average 40–50 centimetres (16–20 in) of height, with a maximum of 70 centimetres (28 in). The bulbs are whitish and ovoid. The stems are erect and the long leaves are fleshy and lance-shaped, 8–15 millimetres (0.31–0.59 in) wide. The raceme is pyramidal, with 25-75 hermaphrodite flowers. Each flower has a long bract of 1–2 centimetres (0.39–0.79 in) and six star-shaped milky white petals bearing a pale green central vein, while the buds are oval, with longitudinal green and white stripes. The six stamens have a white filament holding yellow anthers of 4 millimetres (0.16 in). The flowers are pollinated by insects. The flowering period extends from May through June.