The genus Muscari, commonly and collectively known as grape hyacinths, are a group of perennial plants native to Eurasia that produce spikes of dense, most commonly blue, urn-shaped flowers resembling bunches of grapes in the spring. White cultivars also exist.
The Muscari have originated in the old world, from the Mediterranean basin, the Center and South of Europe, Northern Africa, the West, Center and South-West of Asia. The term muscari comes from the Latin muscus, since the scent is said to resemble musk.
Description taken from Wikipedia: http://en.wikipedia.org/wiki/Muscari