Additional notes (click to expand)

Medicinal

Traditional Herbal Medicine Registration (THMR).

The following notes refer to the species of this plant. While traditional Chinese and other Asian medicines have used the kernels and roots of the Ginkgo for many centuries, modern Western research has focused almost entirely on the leaf, which has been shown to have highly beneficial effects on the brain and improve a wide range of cerebral functions. In order to become therapeutically effective, however, the leaves must be rendered into a contracted extract for medicinal use. Reid states that simple decoctions of the leaves are not sufficiently potent to deliver results. Ginkgo leaf increases circulation to the brain and can be used to treat cerebrovascular insufficiency; migraine; vertigo and memory impairment. It has been shown to be an effective free-radical scavenger, with particular affinity for the central nervous system, and thus it protects the brain and nerve cells from destruction by free radicals and from premature aging. It also inhibits blood-platelet aggregation, providing a stong measure of protection against stroke and coronary thrombosis. Ginkgo leaf has been shown to significantly increase the sythesis of dopamine, norepinephrine, and other vital neurotransmitters in the brain, thereby enhancing important cerebral functions such as learning, memory, alertness, information processing, and biofeedback with the endocrine system. This makes it an effective preventative treatment for premature senility, dementia, brain damage, and a wide range of cognitive disorders. It is said to help relax the lungs, stregnthen blood vessels and act as a circulatory system tonic. In Chinese Traditional Medicine (TCM) the kernels of Ginkgo are used as a an astringent; sedative; antitusive; cardiotonic; digestive; anthelmintic and antidote to alcohol intoxication. According to Reid, it tonifies primordial energy; nourishes kidney-yin and warms lung-energy. Consumption of large amounts can cause toxic reactions, such as vomiting and convulsions, while prolonged use tends to suppress appetite. Unlike the kernels, Reid states that the root of the Ginkgo tree is nontoxic and is sometimes use to treat long-term conditions. In TCM it's used to treat involuntary ejaculation.
Reid, Daniel. (2001). A Handbook of Chinese Healing Herbs, Periplus Editions. 2nd ed p.123-125

Other use

From Patient information leaflet for preparations licensed as Traditional Herbal remedies in the UK. Indication: relief of symptoms of Raynaud’s syndrome and tinnitus. Ginkgo tolerates atmospheric pollution and is an excellent landscape tree.
Medicines and Health Care Regulatory Authority, 2013 Licensed Traditional Herbal Remedies

Toxicity

Side effects/precautions: Hypersensitivity; do not take if allergic to peanut or soya, pregnant or breastfeeding; caution with pre-existing bleeding disorder; may cause allergies, central and peripheral nervous system disorders, gastrointestinal disorders, skin and appendage pruritis and rash, Stevens-Johnson syndrome, bleeding disorders. From Patient information leaflet for preparations licensed as Traditional Herbal remedies in the UK.
Medicines and Health Care Regulatory Authority, 2013 Licensed Traditional Herbal Remedies

Geographical distribution

  • Asia-Temperate, China, China Southeast

Ginkgo biloba L. 'Mariken'

Family: GINKGOACEAE
Genus: Ginkgo
Species: biloba L.
Cultivar: 'Mariken'
Common names: maidenhair tree 'Mariken'
Distribution summary: China Southeast
Habit: Tree
Hardiness: H6 - Hardy; very cold winter
Garden status: Currently grown
Garden location: Plants in pots (POT)
Reason for growing: Medicinal


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