Horticultural Classifications

Whether of wild or cultivated orgin, 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. Division 12 and 13 are not illustrated owing to the wide variation in shape and size between the flowers involved.

DIVISION 1  Trumpet Daffodil Cultivars.

One flower to a stem ; corona ( trumpet ) as long as , or longer than the perianth segments (petals).



DIVISION 2  Large - cupped Daffodil Cultivar.

One flower to a stem ; corona more than one third ,  but less  than equal to th length of the perianth.



DIVISION 3 Small - cupped Daffodil Cultivar.

One flower to a stem ; corona not more than one - third the length of the perianth segments.



DIVISION 4 Double Daffodil Cultivar.

One or more flowers to a stem , with the doubling of the perianth segments or the corona or both.



DIVISION 5 Triandrus Daffodil Cultivar.

Characteristics of N.Triandrus clearly evident : usually two or more pendant flowers to a stem ; perianth segments reflexed.

DIVISION 6 Cyclamineus Daffodil Cultivar.

Characteristics of N.cyclamineus clearly evident ; one flower to a stem ; perianth segments significantly reflexed ; flower at an acute angle to the stem , with very short pedicel (neck).

shaped or flared , usually wider than long ; flowers usually fragrant.

DIVISION 8 Tazetta Daffodil Cultivar.

Characteristics of Section Tazetta clearly evident : usually three to twenty flowers to a stout stem ; perianth segments spreading not reflexed ; flowers usually fragrant.

DIVISION 9 Poeticus Daffodil Cultivar.

Characteristics of the N.poeticus group : usually one flower to a stem ; perianth segments pure white ; corona very short or disc shaped , usually with a green and/or yellow centre and a red rim , but sometimes of a single colour ; flowers usually fragrant.

DIVISION 11 Split Corona Daffodil Cultivars.

Corona split - usually for more than half its length.

a). Collar Daffodils.

Split corona daffodils with the corona segments opposite the perianth segments ; the corona segments usually in two whorls of three.

b). Papillon Daffodils.

Split corona daffodils with the corona segments alternate to the perianth segments usually in a single whorl of six.

DIVISION 12 Other Daffodil Cultivars.

Daffodil cultivars which do not fit the definition of any other division.

DIVISION 13 - Daffodils Distinguished Solely by Botanical Name

SECTION TAFEINANTHUS
Autumn flowering; one to four flowers to a rounded stem; leaves very narrow, glaucous, not aiway present on flowering bulbs; flower ascending, yellow; corona absent or mdimentary; anthers widely exserted from the tube, much shorter than the filaments, dorsifixed.

SECTION SEROTINI
Autumn flowering; usually one to wo flowers to a rounded stem; leaves very narrow, glausous, not always present on flowering bulbs; perianth segments pure white, usually very short, yellow, orange or green; anthers including in or slightly exserted from tube, longer than the filaments, dorsifixed; flowers fragrant.

SECTION AURELIA
Autumn flowering; three to 12 flowers to a compressed stem; leaves flat not channelled, glaucous; flowers white; corona mdimentary or absent; filaments unequal in length; anhers exserted from the tube, dorsifixed; flowers fragrant.

SECTION TAZETRAE
Autumn to Spring flowering; three (rarely two) to 20 flowers to a usually compressed stem; leaves flat or channelled, usually glaucous; flowers white or bicoloured; anthers included in or slightly exserted from the tube, much longer than the filaments, dorsifixed; flowers fragrant. the rounded stem and green leaves of NalIrells atypical, also the orange corona of Nelegans.

SECTION NARCISSUS
Spring flowering; usually one flower (exceptionally two to four) to a compressed stem; leaves flat not channelled, glaucous; perianth segments pure white; corona disc-shaped or very shallow, sometimes of a single colour, but usually with base green, mid-zone yellow and rim red or orange and often scarious; anthers partly exserted from tube, much longer than the filaments, dorsifixed; flowers fragrant. Section covers N.peeficlls.

SECTION JONQUILLA
Spring flowering; one to five (rarely eight) flowers o a rounded stem; leaves narrow or semi-cylindrical, green; flowers yello, never white; perianth segments spreading or reflexed; corona usually cup-shaped, usually wider than long; anthers included in or partly exserted from the tube, much longer than the filaments, dorsifixed; flowers fragrant. The Autumn flowering, green-flowered N.viridlflorlls is atypical.

SECTION APODANTHI
Spring flowering; one flower or two to five to a somewhat compressed stem; leaves narrow, channelled, glaucous; flowers white or yellow, never bi-coloured; perianth segments spreading or slightly reflexed; corona cup-shaped, funnel-shaped or flared, usually wider than long; anthers included in the tube or three included and three exserted, much longer than the filaments, dorsifixed.

SECTION GANYMEDES
Spring flowering; one flower or two to six to an elliptical or cylindrical stem; flowers pendent, white or yellow or somewhat hi-coloured; leaves flat or semi-cylindrical; perianth segments reflexed; corona cup-shaped (rarely campanulate); anthers three included in the tube, three exserted (often beyond the corona), equal to or much shorter than the filaments, dorsifixed. Section covers N.friandrlls.

SECTION BULBOCODIUM
Autumn to Spring flowering; one flower to a rounded stem; leaves narrow, semi-cylindrical; flowers white or yellow; perianth segments insignificant compared with the dominant corona; anthers widely exserted from the tube (often beyond the corona), much shorter than the filaments (which are usually curved), dorsifixed.

SECTION PSEUDONARCISSUS
Spring flowering; usually one flower to a more or less compressed or sometimes rounded stem; leaves fiat or channelled, usually glausous; flowers white, yellow or bicoloured; perianth segments usually spreading orinflexed; corona more or less cylindrical, often flared at mouth, yellow or white (never orange or red); anthers exserted from the tube, equal or shorter than the filaments, sub-basifixed. The gren leaves, rounded stem and strongly reflexed perisoth segments of N.njclanlineus and the two to four flowers to a stem of N.lengispafhlls and N.nevadensis are atypical.

NEW HORTICULTURAL CLASSIFICATION
(Taken from the Intemational Daffodil Register by kind permission of the Royal Horticultural Society)