Research
International Daffodil Register and Classified List (1998)
HORTICULTURAL CLASSIFICATION
Whether of wild or cultivated origin, once a selection has been distinguished by a cultivar name it should be assigned to Divisions 1-12. Daffodils distinguished solely by botanical name should be assigned to Division 13.
Notes
1. The characteristics for Divisions 5 to 10 are given for guidance only; they are not all necessarily expected to be present in every cultivar assigned to those divisions
2. Divisions 12 and 13 are not illustrated owing to the wide variation in shape and size between the flowers involved
DIVISION 1 - TRUMPET DAFFODIL CULTIVARS
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One flower to a stem; corona ("trumpet") as long as, or longer than the perianth segments ("petals") |
DIVISION 2 - LARGE-CUPPED DAFFODIL CULTIVARS
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One flower to a stem; corona ("cup") more than one third, but less than equal to the length of the perianth segments ("petals") |
DIVISION 3 - SMALL-CUPPED DAFFODIL CULTIVARS
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One flower to a stem; corona ("cup") not more than one third the length of the perianth segments ("petals") |
DIVISION 4 - DOUBLE DAFFODIL CULTIVARS
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One or more flowers to a stem, with doubling of the perianth segments or the corona or both |
DIVISION 5 - TRIANDRUS DAFFODIL CULTIVARS
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Characteristics of N. triandrus clearly evident: usually two or more pendent flowers to a stem; perianth segments reflexed |