First, classify by color. This is the earliest classification in China. In Song Dynasty, Liu Meng divided 36 varieties into yellow 17, white 15 and variegated colors.
Second, classify by plant height. According to the height of chrysanthemum plants, it can be divided into three categories: high (above 1m), medium (0.5 ~ 1m) and short (0.2 ~ 0.5m).
Third, according to the classification of flowering period. According to different flowering seasons, it can be divided into spring chrysanthemum, Xia Ju chrysanthemum, autumn chrysanthemum, winter chrysanthemum and "May 9th" chrysanthemum. According to the flowering period, autumn chrysanthemum can be divided into early, middle and late categories.
4. 1982 The National Symposium on Chrysanthemum Variety Classification held by the National Horticultural Society in Shanghai divided autumn chrysanthemums into 5 petals, 30 flower types and 13 subtypes. Now listed as follows (subtype omitted):
(1) Flat petal type: broadband type, lotus type, peony type, flat disc type, roll type and stacked ball type.
(2) Spoons: spoon-shaped, tongue-shaped, honeycomb-shaped, rose-shaped, rolled and spoon-shaped.
(3) Tube petals: single tube type, feather tube type, tube disc type, loose needle type, sparse tube type, tube ball type, silk hair type, flying type, adhesive tape type, garland type and bead-piercing type.
(4) Cinnamon: Pinggui, Kegui, Guangui and Quangui.
(5) Deformation valves: claw type, burr type and shear type.
Five, according to the species type, variety evolution order, cultivation and application classification. The specific points are as follows:
(1) Xiao Ju strain (flower diameter less than 6 cm under normal cultivation conditions);
(1) small wheel type, (2) small ball type, (3) small star type and (4) small laurel type.
(2) Medium and large chrysanthemum strains (flower diameter is greater than 6 cm under natural cultivation);
1. Petals (ligulate flowers are mainly flat petals):
(5) single petal type, (6) compound petal type, (7) rose type, (8) turnover type, (9) spherical type, (10) rolling plate type and (1 1) vertical belt type.
2. Tubular flowers (ligulate flowers are tubular petals):
(12) tube ball type, (13) tube disc type, (14) pine needle type, (15) pine needle type, (16) dancing ring type, (16)
3. Osmanthus fragrans petals (tubular flowers in laurel shape):
(18) Tuoba GUI type.
4. Deformed flowers (small flowers with dense burrs and cracked tips). ):
(19) burr type, (20) dragon claw type.
6. According to the different responses of chrysanthemum varieties to short sunshine. Chrysanthemum varieties are divided into extremely sensitive varieties (shading to bud 15 ~ 19 days). Sensitive varieties (shading to bud for 20-24 days), sensitive varieties (25-29 days), insensitive varieties (30-34 days) and extremely insensitive varieties (more than 34 days).
Origin:
Chrysanthemum originated in China, and China is the origin center of chrysanthemum in the world, where there are many wild chrysanthemums. Chrysanthemum has been planted in China for more than 3000 years. As early as in the ancient book "Book of Rites", there was a record that "the moon is bright and autumn, and chrysanthemums bloom with yellow flowers". Chrysanthemum was cultivated as a medicinal plant in Han Dynasty, and was widely cultivated in Jin and Wei Dynasties, and then gradually developed into an ornamental flower. The Song Dynasty was the heyday of chrysanthemum development. The Chrysanthemum Book written by Liu Mengquan in Song Dynasty contains 163 species of chrysanthemums, which is the earliest chrysanthemum monograph in China. In the Ming Dynasty, Wang's Qunfangpu included more than 270 varieties of chrysanthemums. Chrysanthemums from many countries in the world came from China.