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Flowering heads and leaves of Cannabis sativa

Flowering heads and leaves of Cannabis sativa

M371/0037

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Credit

GEORGE POST / SCIENCE PHOTO LIBRARY GEORGE POST / SCIENCE PHOTO LIBRARY

Caption

Marijuana. Close-up of a several flowering heads of Cannabis sativa. These are amongst the most potent parts of the plant. The plant is widely (though illegally) used as a euphoriant and relaxant drug. It is commonly smoked, either rolled with tobacco in a joint, or by itself in a pipe. The active ingredient is tetrahydrocannabinol (THC). When smoked, the effects of the drug occur within a few minutes. These include relaxation, a slowing of time, and increased imagination. The drug has also been used medicinally (although still illegally) to relieve the symptoms of chronic disorders such as multiple sclerosis.

Release details

Model release not required. Property release not required.

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