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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, and as a recreational …

  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 (THC), which has …

  3. 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…?”

  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 more than 100 …

  5. Cannabis | Definition, Species, & Marijuana | Britannica

    Dec 16, 2025 · Cannabis, medicinal, recreational, and fiber plants belonging to the family Cannabaceae. The taxonomy of the genus is contentious. A canelike variety is used for the production of hemp …

  6. Marijuana - Mayo Clinic

    Aug 15, 2025 · Find out why cannabis, also called weed or marijuana, is used and the possible risks.

  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 often it’s not …

  8. 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 the "high" …

  9. 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.

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

    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 more.