Brief introduction of osmanthus:
Osmanthus fragrans is an evergreen tree or shrub of Oleaceae, with thin pedicels, extremely short filaments and extremely fragrant flowers. The fruit is skewed, generally oval and purple-black; The opposite leaves are leathery, elliptic, oblong or elliptic-lanceolate, with the apex acuminate and the base acuminate or broadly cuneate. The flowering period is 65438+ 10 from September to June, and the fruiting period is March of the following year.
Osmanthus fragrans is also one of the top ten famous flowers in China. Osmanthus fragrans was cultivated in China as early as 2000 years ago. Pucheng, Fujian Province is one of the main producing areas of osmanthus fragrans. The growth of flowers needs a warm and humid climate, and there are certain requirements for sunshine intensity. Too strong sunlight and shade are not conducive to the normal growth of osmanthus fragrans. Usually, the sunshine time is controlled at 6-8 hours, so the growing area needs good hydrothermal conditions and suitable precipitation.
The soil is mostly yellow brown soil or yellow cinnamon soil, and the vegetation is mainly subtropical broad-leaved forest. The main propagation techniques of osmanthus fragrans include asexual propagation, cutting, grafting and layering propagation. Osmanthus fragrans can be used for excessive phlegm, cough and asthma, epigastric cold pain, amenorrhea and dysmenorrhea. The effect of osmanthus fragrans on halitosis is recorded in Pharmacology of Traditional Chinese Medicine.
Both Annals of Chinese Herbal Medicine in Anhui and Annals of Medicinal Plants in Zhejiang record that osmanthus fragrans is mainly used to treat stomach cold and abdominal pain, and it also has the effect of resolving phlegm and relieving cough. Besides medicinal value, osmanthus fragrans can also be processed for Osmanthus Jelly people to eat. Osmanthus Jelly has a long history, also known as Chongyang Cake. There is a poem "The Mid-Autumn Festival has just passed the Double Ninth Festival, and flower cakes are busy everywhere.
Osmanthus fragrans has not only therapeutic value, but also ornamental value. Its tree posture is correct and elegant, the crown is round and round, and the soft tree shape gives people a sense of stability and peace. In Song dynasty's metabolism poems, osmanthus fragrans was described as "cutting leaves to protect gold scraps", while in Yuan dynasty, golden millet was raining like rain.
Morphological characteristics:
Osmanthus fragrans is an evergreen tree or shrub, with a height of 3-5 meters and a maximum of 18 meters. The bark is grayish brown. Branchlets yellowish brown, glabrous. Leaf blade is leathery, elliptic, oblong or elliptic-lanceolate, 7-14.5cm long and 2.6-4.5cm wide, the apex is acuminate, the base is acuminate or broadly wedge-shaped, the whole or usually the upper part is serrate, and both sides are hairless.
There are vesicles on both sides of the glandular point, and the midvein is concave and convex, with 6-8 pairs of lateral veins, as many as 10 pairs, concave and convex; The petiole is 0.8- 1.2 cm long, and the longest is 15 cm, without hair.