Of the 50 or so species, the following are the most common.
Cultivars are complex hybrids of many other cultivars and species.
Letters before a hyphen refer to the outer perianth petals, those following the hyphen refer to the corona color. There may be up to 3 colors for the corona, in order of eye zone, mid zone, and rim color. Thus for instance 3W-GYO means division 3, white petals, and the corona with green eye zone, yellow mid zone and orange rim. Double daffodils of garden origin, one or more flowers per stem, double petals or corona or both, 14-18' tall. Species , wild variants, hybrids including doubles 11.