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Cannabis is a genus of flowering plants in the family Cannabaceae. The number of species within the genus is disputed. Three species may be recognized: Cannabis sativa, C. indica, and C. ruderalis. Alternatively, C. ruderalis may be included within C. sativa, or all three may be treated as subspecies of C. sativa, or C. sativa may be accepted as a single undivided species. The genus is widely accepted as being indigenous to and originating from Asia.
Tetrahydrocannabinol (THC) is a cannabinoid found in cannabis. It is the principal psychoactive constituent of cannabis and one of at least 113 total cannabinoids identified on the plant. Although the chemical formula for THC (C21H30O2) describes multiple isomers, the term THC usually refers to the delta-9-THC isomer with chemical name (−)-trans-Δ9-tetrahydrocannabinol. It is a colorless oil.
Medical cannabis, medicinal cannabis or medical marijuana (MMJ) refers to cannabis products and cannabinoid molecules that are prescribed by physicians for their patients. The use of cannabis as medicine has a long history, but has not been as rigorously tested as other medicinal plants due to legal and governmental restrictions, resulting in limited clinical research to define the safety and efficacy of using cannabis to treat diseases.
Hemp oil is oil obtained by pressing hemp seeds. Cold pressed, unrefined hemp oil is dark to clear light green in color, with a nutty flavor. The darker the color, the grassier the flavour. It should not be confused with hash oil, a tetrahydrocannabinol-containing oil made from the Cannabis flower.
Hemp, or industrial hemp, is a plant in the botanical class of Cannabis sativa cultivars grown specifically for industrial and consumable use. It can be used to make a wide range of products. Along with bamboo, hemp is among the fastest growing plants on Earth. It was also one of the first plants to be spun into usable fiber 50,000 years ago. It can be refined into a variety of commercial items, including paper, rope, textiles, clothing, biodegradable plastics, paint, insulation, biofuel, food, and animal feed.
Cannabidiol (CBD) is a phytocannabinoid, one of 113 identified cannabinoids in cannabis plants, along with tetrahydrocannabinol (THC), and accounts for up to 40% of the plant's extract. Medically, it is an anticonvulsant used to treat multiple forms of epilepsy. It was discovered in 1940 and, as of 2024 clinical research on CBD included studies related to the treatment of anxiety, addiction, psychosis, movement disorders, and pain, but there is insufficient high-quality evidence that CBD is effective for these conditions. CBD is sold as an herbal dietary supplement and promoted with yet unproven claims of particular therapeutic effects.
Tetrahydrocannabivarin is a homologue of tetrahydrocannabinol (THC) having a propyl (3-carbon) side chain instead of pentyl (5-carbon), making it non-psychoactive in lower doses. It has been shown to exhibit neuroprotective activity, appetite suppression, glycemic control and reduced side effects compared to THC, making it a potential treatment for management of obesity and diabetes. THCV was studied by Roger Adams as early as 1942.
Humulus lupulus, the common hop or hops, is a species of flowering plant in the hemp family, Cannabaceae. It is a perennial, herbaceous climbing plant which sends up new shoots in early spring and dies back to a cold-hardy rhizome in autumn. It is dioecious and native to West Asia, Europe and North America.
In the United States, increased restrictions and labeling of cannabis as a poison began in many states from 1906 onward, and outright prohibitions began in the 1920s. By the mid-1930s cannabis was regulated as a drug in every state, including 35 states that adopted the Uniform State Narcotic Drug Act. The first national regulation was the Marihuana Tax Act of 1937.
Cannabis strains is a popular name to refer to plant varieties of the monospecific genus Cannabis sativa L.. They are either pure or hybrid varieties of the plant, which encompasses various sub-species C. sativa, C. indica, and C. ruderalis.
Dronabinol, sold under the brand names Marinol and Syndros, is the generic name for the molecule of (−)-trans-Δ9-tetrahydrocannabinol (THC) in the pharmaceutical context. It has indications as an appetite stimulant, antiemetic, and sleep apnea reliever and is approved by the U.S. Food and Drug Administration (FDA) as safe and effective for HIV/AIDS-induced anorexia and chemotherapy-induced nausea and vomiting.
Tetrahydrocannabinolic acid is a precursor of tetrahydrocannabinol (THC), an active component of cannabis.
The history of medicinal cannabis goes back to the ancient times. Ancient physicians in many parts of the world mixed cannabis into medicines to treat pain and other ailments. In the 19th century, cannabis was introduced for therapeutic use in Western Medicine. Since then, there have been several advancements in how the drug is administered. Initially, cannabis was reduced to a powder and mixed with wine for administration. In the 1970s, synthetic THC was created to be administered as the drug Marinol in a capsule. However, the main mode of administration for cannabis is smoking because its effects are almost immediate when the smoke is inhaled. Between 1996 and 1999, eight U.S. states supported cannabis prescriptions opposing policies of the federal government. Most people who are prescribed marijuana for medical purposes use it to alleviate severe pain.
Hemp protein is a plant-derived protein from the cannabis plant and is isolated from hemp seeds.
Kentucky was the greatest producer of hemp in the United States during the 19th and 20th centuries, when it was the source of three fourths of U.S. hemp fiber. Production started to decline after World War I due to the rise of tobacco as the cash crop in Kentucky and the foreign competition of hemp fibers and finished products. In 1970, federal policies virtually banned the production of industrial hemp during the war on drugs saying all Cannabis sativa is a Schedule I controlled substance. Federal law under the Agricultural Act of 2014 allowed research back into hemp. Kentucky began production again with 33 acres in 2014. As of the 2016 harvest season, only two U.S. states other than Kentucky had over 100 acres (40 ha) in hemp production: Colorado and Tennessee. The first 500-acre commercial crop was planted in Harrison County in 2017, and research permits were issued for over 12,000 acres (4,900 ha) that year. The 2016 documentary Harvesting Liberty concerns the 21st century Kentucky hemp industry.
Cannabis is currently legal for medical and industrial uses in Italy, although it is strictly regulated, while it is decriminalized for recreational uses. In particular, the possession of small amounts of marijuana for personal use is a civil infraction. The possible sanctions for possession vary from the issuing of a diffida to first offenders, which is an injunction not to use the drug again; to the temporary suspension of certain personal documents for repeat offenders. Conversely, the unauthorized sale of cannabis-related products is illegal and punishable with imprisonment, as is the unlicensed cultivation of cannabis, although recent court cases have effectively established the legality of cultivating small amounts of cannabis for exclusively personal use. The licensed cultivation of cannabis for medical and industrial purposes requires the use of certified seeds; however, there is no need for authorization to plant certified seeds with minimal levels of psychoactive compounds.
Terms related to cannabis include:
'FINOLA' is a low THC hemp variety from Finland that is primarily used to produce hempseed.
The cultivation of cannabis in Italy has a long history dating back to Roman times, when it was primarily used to produce hemp ropes, although pollen records from core samples show that Cannabaceae plants were present in the Italian peninsula since at least the Late Pleistocene, while the earliest evidence of their use dates back to the Bronze Age. For a long time after the fall of Rome in the 5th century A.D., the cultivation of hemp, although present in several Italian regions, mostly consisted in small-scale productions aimed at satisfying the local needs for fabrics and ropes. Known as canapa in Italian, the historical ubiquity of hemp is reflected in the different variations of the name given to the plant in the various regions, including canape, càneva, canava, and canva in northern Italy; canapuccia and canapone in the Po Valley; cànnavo in Naples; cànnavu in Calabria; cannavusa and cànnavu in Sicily; cànnau and cagnu in Sardinia.
References
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 Plant variety database - European Commission, Hemp - Cannabis sativa (A-85) accessed 2019-02-18
- 1 2 3 4 5 The Performance and Potentiality of Monoecious Hemp (Cannabis sativa L.) Cultivars as a Multipurpose Crop August 2018 with 220 Reads DOI: 10.3390/agronomy8090162
- ↑ Canada, Health (2016-04-22). "List of Approved Cultivars for the 2024 Growing Season: Industrial Hemp Varieties Approved for Commercial Production". www.canada.ca. Retrieved 2024-11-20.
- 1 2 3 Canadian Hemp Trade Alliance, (CHTA_ (September 1, 2024). "Enhanced LOAC" (PDF). Canadian Hemp Trade Alliance (CHTA). Retrieved November 20, 2024.
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