I think this is Narcissus tazetta L. Family: Amaryllidaceae.
Narcissus tazetta has corona less than 1/3 the tepals and flowers 4 or more together This is Narcissus incomparabilis Mill, characterised by flowers single on scape, coronoa nearly half as long as tepals. http://www.pacificbulbsociety.org/pbswiki/index.php/NarcissusHybrids