BLOOM SIZE

AA    Over 10"
A      8" to 10"
B      6" to 8"
BB    4" to 6"
M     Under 4"
BA   Ball Over 3.5"
MB   Mini Ball 2 to 3.5"
P      Pompon Under 2"

BLOOM TYPE/FORM

FD    Formal Decorative
ID     Informal Decorative
SC    Semi Cactus
STC  Straight Cactus
C      Cactus
IC     Incurved Cactus
LC    Laciniated (Split tips)
WL   Waterlily
NX    Novelty Double
ST    Stellar
O      Orchid
COL  Collarette
MS    Mignon Single
PE     Peony Type
AN     Anenome
POM  Pompon

DESCRIPTION

FORMAL DECORATIVE: Flat petals with an even, regular placement throughout the flower.

INFORMAL DECORATIVE: Generally flat petals, sometimes slightly rolled at the tips, but with irregular arrangement.

SEMI-CACTUS: Petals flat at the base, with less than one-half of the petals rolled or quilled.

STRAIGHT CACTUS: Petals rolled for one-half their length of the straight or nearly straight petal.

CACTUS: Petals straight but rolled most of their length.

INCURVED CACTUS: Petals rolled for their full length, with the tips of the petals curving toward the center of the flower.

LACINIATED CACTUS: Petals split no less than 1/6 their length. These flowers have an overall fringed effect.

WATERLILY: Closed center with multiple rows of ray florets normally broad and flat or slightly incurved, depth usually less than one inch in diameter.

ORCHID TYPE: Open centered flowers with one row of ray florets surrounding a disc. The florets involute for two-thirds or more of their length. Usually partially overlapping.

COLLARETTE: One row of flat or slightly cupped petals surrounding a disc. These flowers have an inner set of petaloids generally multiple and irregular forming a collar around the disc.

MIGNON SINGLE: Open centered flowers with a single row of ray florets surrounding a disc. Flowers are up to two inches in diameter.

PEONY TYPE: Open centered flowers with two or more rows of petals surrounding a disc. Petals may be irregularly formed.

ANENOME: One or more rows of ray florets around a center of elongated tubular disc florets (pincushion appearance)

POMPON: Fully double flowers, almost round in shape with tightly quilled petals, blooms 2 inches and under in diameter.

MINIATURE: A general term which applies to all dahlias producing flowers less than 4" in diameter (pompons excluded).

MINIATURE BALL: Fully double flowers, almost round in shape with tightly quilled petals, blooms 2" to 3 1/2 inches in diameter.

BALL: Fully double flowers, almost round in shape with tightly quilled petals, blooms over 3 1/2 inches in diameter.

SINGLE: Open centered flowers with a single row of ray florets surrounding a disc

NOVELTY: Characteristics differing from present classifications.