This is correctly identified material originally from the Anti-Lebanon range, in Syria. The name has been wrongly applied to forms of Allium senescens which is nothing like libani! If anything libani is similar to Allium†akaka, though it is a much more refined plant.
The two leaves are lanceolate, some 1.5 cm wide. Flowers are produced in a dense hemisphere on a 10 cm stem; each flower is fairly big and narrowly cup-shaped, white with a greenish stripe.
It naturally makes small bulbs, 1-1.5 cm diameter only. Very few.