Portal:Cannabis

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Introduction

Cannabis sativa
Common hemp

Cannabis (/ˈkænəbɪs/ ) is a genus of flowering plants in the family Cannabaceae that is widely accepted as being indigenous to and originating from the continent of Asia. However, the number of species is disputed, with as many as three species being 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 plant is also known as hemp, although this term is usually used to refer only to varieties cultivated for non-drug use. Hemp has long been used for fibre, seeds and their oils, leaves for use as vegetables, and juice. Industrial hemp textile products are made from cannabis plants selected to produce an abundance of fibre.

Cannabis also has a long history of being used for medicinal purposes, and as a recreational drug known by several slang terms, such as marijuana, ganja, pot or weed. Various cannabis strains have been bred, often selectively to produce high or low levels of tetrahydrocannabinol (THC), a cannabinoid and the plant's principal psychoactive constituent. Compounds such as hashish and hash oil are extracted from the plant. More recently, there has been interest in other cannabinoids like cannabidiol (CBD), cannabigerol (CBG), and cannabinol (CBN). (Full article...)

Portland, Oregon's Burnside Bridge (pictured in 2012), the site of the "Burnside Burn" event organized by the local chapter of the National Organization for the Reform of Marijuana Laws

The "Burnside Burn" was an event held on the Burnside Bridge in Portland, Oregon, starting at midnight on July 1, 2015, the day recreational marijuana became legal in the U.S. state of Oregon. It was organized by Portland NORML, the local chapter of the National Organization for the Reform of Marijuana Laws, having originated from its executive director, who wanted to photograph himself in front of the White Stag sign in the moments after Oregon Ballot Measure 91 took effect. The crowd, larger than anticipated, numbered in the thousands and at times blocked traffic lanes on the bridge. Some attendees wanted to commemorate the moment, while others were motivated by announcements of free marijuana and seeds. No fines were issued for consumption in public. The event was covered by cannabis publications, local and national news outlets, and the HBO television series Vice. (Full article...)

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Flowering Cannabis indica plant
Flowering Cannabis indica plant
Credit: Aleksander Sowa

Cannabis indica has a higher ratio of CBD:THC compared to Cannabis sativa. Cannabis strains with relatively high CBD:THC ratios are less likely to induce anxiety than vice versa. The effects of sativa are well known for its cerebral high, while indica is well known for its sedative effects which some prefer for night time use. Both types are used as medical cannabis. Indica plants are normally shorter and stockier than sativas. They have wide, deeply serrated leaves and a compact and dense flower cluster. The effects of indicas are predominantly physical and sedative.

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