Introduction of Ginkgo:Ginkgo biloba or Maidenhair tree.

Popular Herbs. ✵The article gives records of the herb Ginkgo, its English name, Latin name, common names, property and flavor, its botanical source one plant species, ①.Ginkgo biloba L., with a detailed introduction to the botanical features of this plant species, the growth characteristics, and ecological environment of this plant species, the features of the herb Ginkgo, its pharmacological actions, medicinal efficacy, and administration guide.

Ginkgo(Ginkgo biloba leaf).

Ginkgo biloba:ginkgo leaves English Name: Ginkgo, Ginkgo biloba
 Latin Name: Ginkgo biloba L.
 Common Names: Bai guo, Ginkgo biloba, Kew tree, Maidenhair tree.
 Property and flavor: neutral in nature, tastes sweet, bitter, puckery.

 Brief introduction: During the Ice Age (glacial epoch, also called glacial age, any geologic period during which thick ice sheets cover vast areas of land.), all members of the Ginkgoaceae family were wiped out except Ginkgo biloba, it has survived more than 200 million years in China and has since become popular as a stately ornamental tree in parks, gardens, and city streets around the world. The leaves and sometimes the seeds are used medicinally. The first mentioned use of Ginkgo biloba appears in China.

 Botanical source: Common herbal classics defined the herb Ginkgo as the leaves of the species (1). Ginkgo biloba L. It is a plant species of the Ginkgo genus, the Ginkgoaceae family. The dried leaves and fruit kernel are used medicinally. This commonly used species is introduced:

(1).Ginkgo biloba L.

 Ginkgo biloba:ginkgo tree Botanical description: Ginkgo biloba is a deciduous tree, it grows up to 40 meters high. The bark is grayish-brown, deeply longitudinally cracked. It has long branches and short branches; The annual branches are light brown-yellow, the biennial branches are gray, and the short branches are dark gray. Leaves scattered spirally on long branches, clustered on short branches, with fan-shaped leaves, 5~8 cm wide at the upper edge, shallowly wavy, sometimes shallowly or deeply split in the center, wedge-shaped at the base; Petiole is 1~3 cm long. Dioecious, rarely monoecious; Cone grows in the axils of leaves or bracts of short branches; The male cones are in the shape of catkin, with many stamens; Female cones have a long stalk, and the stalk ends are usually forked. Seeds are drupe-shaped, oval to nearly spherical, with fleshy episperm, white powder, light yellow or orange; mesosperm is bony, white, with 2-3 ribs; endotesta is membranous; Rich endosperm. Its flowering period is from March to April and fruiting from September to October.

 Ginkgo biloba:ginkgo tree with fruits Ecological environment: Ginkgo biloba grows in acidic soil at an altitude of 500~1,000 meters and in a natural forest with good drainage.

 Growth characteristics: Ginkgo biloba likes warm and humid climates, sunny, cold-resistant, drought-tolerant, and waterlogging-resistant. It grows well in the climate with an annual average temperature of 10~18 °C (Celsius, or 50~64.4 degrees Fahrenheit), absolute minimum temperature of not lower than -20 °C (Celsius, or -4 degrees Fahrenheit) in winter, annual rainfall of 600~1,500 mm, and sandy soil with a deep soil layer. It should not be planted on shady slopes, stagnant water, or soil with too much salt.

 Ginkgo biloba:ginkgo leaves Pharmacological actions: ①.promotes vasodilation and improves the rate of blood flow in capillary vessels; ②.relieve impotence; ③.increases cerebral blood flow; ④.relieve senile and presenile dementia; ⑤.antiallergic properties; ⑥.improve hearing problems; ⑦.antioxidant effect; ⑧.relieve congestive symptoms of premenstrual syndrome, etc.

 Ginkgo biloba leaves promote vasodilation and improve the rate of blood flow in capillary vessels and certain small arteries, benefit circulation-related disorders, from varicose veins to short-term memory loss, depression, depression-related cognitive problem, arterial disease of the lower limbs, postthrombotic syndrome, inner-ear disorders such as tinnitus and vertigo. Ginkgo helps men suffering from impotence caused by the insufficient blood supply to the genital organ. Ginkgo biloba extract increases cerebral blood flow in humans, and symptoms of chronic cerebral insufficiency in older people are improved by taking a standardized leaf extract of ginkgo, 1-year taking can relieve symptoms such as short-term memory loss, headache, vertigo, tinnitus, mood disturbance, loss of vigilance, its efficacy need at least six weeks to show any benefit.

 Ginkgo leaves fossil Ginkgo is useful in treating senile and presenile dementia, including dementia related to Alzheimer's disease, elderly men suffering from slight memory loss took less time to process visual information when they are given a ginkgo supplement.

 Ginkgo has an antiallergic property, it inhibits the platelet-activating factor and stops it from latching on to its membrane receptor, platelet-activating factor is a key chemical mediator in asthma, allergies, and inflammation.

 Ginkgo biloba extract improves hearing problems related to poor blood flow to the nerves critical to hearing, probably attributes to increased peripheral blood flow, it is effective in relieving vertigo associated with vestibular dysfunction, a disorder of balance and dizziness involving the inner ear.

 Ginkgo biloba extract has an antioxidant effect and is an effective free-radical scavenger, it cleans up potentially dangerous, cancer-promoting charged particles in body tissue, and the antioxidant effects are identified mainly from its flavonoids.

 Ginkgo biloba extract is effective for the treatment of the congestive and neuropsychological symptoms of PMS (premenstrual syndrome), particularly breast symptoms. Ginkgo biloba leaf is effective in inhibiting the development of liver fibrosis associated with chronic hepatitis B. Ginkgo biloba leaf improves long-distance visual acuity in patients with macular degeneration.

 Ginkgo biloba:ginkgo leaves Medicinal efficacy: Ginkgo is used for various ailments including heart disease, asthma, vertigo and tinnitus, impotence, cerebral and vascular insufficiency, eye disorders, neuralgia, peripheral vascular diseases including intermittent claudication and Raynaud's disease, vascular fragility, improvement of short-term memory, depression-related cognitive problems, brain-trauma injuries, dementia, and a variety of ailments associated with senility. In Europe, Ginkgo biloba leaf and its preparations are approved for symptomatic relief of organic brain dysfunction, intermittent claudication, vertigo of vascular origin, and tinnitus of vascular origin. In homeopathy, it is used for tonsillitis and cephalgia. TCM works recorded ginkgo biloba leaf astringe the lung, relieving asthma, activating blood circulation to dissipate blood stasis, relieve pain, etc., and it is indicated for lung deficiency cough asthma, coronary heart disease, angina pectoris, hyperlipemia, etc.

 Administration of Ginkgo (Ginkgo biloba leaf): 
Reference: Administration Guide of Ginkgo (Ginkgo biloba leaf)
Herbal classic books and TCM Books: Dosage: The ginkgo leaf extract (GBE) is taken in doses of 40 mg~80 mg three times a day with meals. Alternatively, 10 to 30 drops of the extract standardized to 0.5 percent flavone glycosides are taken three times a day. Ginkgo biloba should be protected from light and moisture for storage.
 Contraindications, Precautions and Adverse Reactions: In rare cases, headache, vertigo, and dizziness occur. Individuals who took as much as 600 mg of leaf extract in single doses report significant adverse reactions. The pulp and seed are poisonous, and handling the fruit pulp can cause a severe allergic reaction, with possible redness, swelling, itching, and blistering.

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