Cannabis: Home

In this guide

Cannabis flowerThis guide provides key resources related to cannabis and its variants across multiple domains. The guide is still under construction to some extent, so expect to see changes and additions over time. 


  • Cannabidiol (CBD): a constituent of cannabis that has been traditionally considered non-psychoactive.
  • Cannabinoids: one of a class of chemical compounds that act on cannabinoid receptors, cannabinoids can be naturally derived from the cannabis plant or manufactured.
  • Cannabis: a broad term that can be used to describe the various products and chemical compounds derived from the Cannabis sativa or Cannabis indica species.
  • Hemp: Cannabis plants with very low levels of THC (not more than 0.3 percent), also know as “industrial hemp”
  • Marijuana: a Cannabis sativa plant-derived product typically composed from the plant’s dried leaves, stems, seeds, and buds.
  • Tetrahydrocannabinol (THC): the main psychoactive constituent of cannabis.

All definitions, with exception of "hemp," are from National Academies of Sciences, Engineering, and Medicine. (2017). The health effects of cannabis and cannabinoids: The current state of evidence and recommendations for research. Washington, DC: The National Academies Press. doi: 10.17226/24625.

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Credits and Contacts

This guide is authored by Kimberly Pendell, Portland State University Library, inspired and adapted from the Guide to Cannabis Research, Colorado State University-Pueblo Library.