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  1. Cannabis - Wikipedia

    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, …

  2. Cannabis (Marijuana) | National Institute on Drug Abuse (NIDA)

    Sep 24, 2024 · Cannabis refers to the dried leaves, flowers, stems, and seeds of the cannabis plant. The plant has many different chemical compounds, including tetrahydrocannabinol …

  3. Cannabis: Uses (Medical), Effects & Warnings - Drugs.com

    Cannabis contains the chemical compound THC (delta-9 tetrahydrocannabinol), which is believed to be responsible for most of the characteristic psychoactive effects of cannabis that leads to …

  4. About Cannabis | Cannabis and Public Health | CDC

    Feb 15, 2024 · Cannabis, which can also be called marijuana, weed, pot, or bud, refers to the dried flowers, leaves, stems, and seeds of the cannabis plant. The cannabis plant contains …

  5. Marijuana (Cannabis, Weed): What It Is, Side Effects & Risks

    Marijuana is a mind-alerting substance that comes from the Cannabis sativa plant. It has several short-term and long-term effects, many of which scientists are still studying.

  6. What Is Cannabis? Facts About Its Components, Effects, and ...

    Jun 22, 2023 · Today, more and more people are using the term cannabis to refer to weed. Read on to learn what cannabis is, and find a quick overview of its uses, legality, side effects, and …

  7. Marijuana and CBD Risks and Resources | SAMHSA

    Dec 3, 2025 · Marijuana use comes with risks to health. Today’s marijuana is stronger than ever before. States that have legalized marijuana regulate the drug in widely different ways ― and …

  8. Marijuana Legality by State 2025 | Where Is Weed Legal? | DISA

    Dec 1, 2025 · See where marijuana is legal in 2025. Interactive map shows state-by-state weed laws, medical and recreational use, and answers “can I smoke weed in…?”

  9. Marijuana | History, Effects, THC, & Legality | Britannica

    Dec 25, 2025 · marijuana, crude drug composed of the leaves and flowers of plants in the genus Cannabis. The term marijuana is sometimes used interchangeably with cannabis; however, …

  10. What Is Cannabis? Usage, Effects And Legality - Forbes

    Apr 17, 2024 · Here's everything you need to know about cannabis, including its components, uses, positive and negative effects, and whether it's legal in the U.S.