variedades cultivadas de dálias
Classificação hortícola
Classificação da National Dahlia Society (NDS)
| 1 | Singela |
As dálias singelas têm florescências com um único anel exterior de flores radiais, que podem sobrepor-se, formando o centro um disco. |
| 2 | Tipo anémona |
As dálias de tipo anémona têm florescências com um ou mais anéis exteriores de flores radiais geralmente achatadas rodeando um grupo denso de flores tubulares, não mostrando qualquer disco. |
| 3 | Collerette | Collerette dahlias have blooms with a single outer ring of generally flat ray florets, which must overlap, with a ring of small florets (The Collar) the centre forming a disc. |
| 4 | Tipo lírio-de-água | Waterlily dahlias have fully double blooms characterised by broad ray florets that are slightly involute along their length (longitudinal axis) giving a saucer shaped appearance to the bloom. The depth should be not more than one third of the diameter of the bloom. |
| 5 | Decorativa formal | Decorative dahlias have fully double blooms showing no disc. The ray florets are generally broad and flat and may be involute for no more than 75% of their length (longitudinal axis) or slightly twisted, and usually bluntly pointed. |
| 6 |
Bola |
Ball dahlias have fully double blooms, ball shaped or slightly flattened. The ray florets rounded at the tips, with margins spirally arranged and involute for at least 75% of the length of the florets. |
| 7 | Pompon | Pompon dahlias have fully double spherical blooms of miniature size, with florets largely involute along their length (longitudinal axis). |
| 8 | Tipo Cacto | Cactus dahlias have fully double blooms, the ray florets are usually pointed, the majority narrow and revolute for 65% or more of their length (longitudinal axis) and either straight or incurving. |
| 9 | Tipo Semi-Cacto | Semi-Cactus dahlias have fully double blooms; the ray florets are usually pointed and revolute for more than 25% and less than 65% of their length and broad at the base and either straight or incurving. |
| 10 | Miscelâneas | Any dahlias which do not fall into type 1 – 9 inclusive and type 11, 12,13 & 14 e.g. Thistle Dahlias, etc. This group includes species dahlias. |
| 11 | Fimbrada | Fimbriated dahlias have blooms where the tips of the ray florets should be evenly split or notched into two or more divisions, uniformly throughout the bloom to create a fringed overall effect. The petals may be flat, involute, revolute, straight, incurving or twisted |
| 12 | Estrela | Star dahlias have blooms with a single outer ring of florets surrounding the disc. Ray florets are uniformly either involute or revolute. |
| 13 | Duplas orquídeas | Double Orchid dahlias have fully double blooms showing no disc and have triangular centres. Ray florets are narrowly lance shaped and either involute or revolute. |
| 14 | Tipo peónia | Paeony dahlias have multiple outer rings of ray florets surrounding a disc, ray florets are flat or slightly involute at base and are flat or are to some extent revolute. |