I found this among my daughter Susan's Facebook photos: Narcissus 'Cassata'. Cassata is her favorite daffodil -bar none.
The creamy white flower of 'Cassata' is a unique bright yellow split corona (cup) which matures to white. The reflexed "petals" from the split cup are ruffled and lie almost flat against the rear white petals.
Cassata blooms early to mid- spring among other narcissus. Plant size is 16 to 18" tall.
Bulbs will naturalize in USDA Zones 4 to 8.
Cassata is for sale in the fall catalog of Brent and Becky's Bulbs, a mail-order bulb emporium in Gloucester, VA. Check them out on thewebsite: http://www.brentandbeckysbulbs.com/