The plant has been known to humans for at least 10,000 years. Over that time, it has accumulated dozens of names across cultures, languages, and legal systems. Cannabis. Marijuana. Hemp. Weed. Pot. Ganja. Dagga. Bhang. The name you use is not a neutral choice. It carries historical weight, political implications, and — depending on where and when you are speaking — legal consequences.

In the past decade, a deliberate shift has occurred across the legal cannabis industry, scientific literature, and regulatory frameworks. The word “marijuana” is being systematically replaced by “cannabis.” This is not a superficial rebranding exercise. It is a conscious reckoning with the racist origins of a term that was weaponized to criminalize communities of color — and it reflects broader questions about who controls the narrative around this plant and who profits from its normalization.

Understanding why the words matter requires understanding where they came from.

The Botanical Baseline

The plant’s scientific name, Cannabis sativa L., was formalized by Carl Linnaeus in his 1753 Species Plantarum, the foundational text of modern botanical taxonomy. Cannabis sativa was subsequently divided by taxonomists into subspecies — sativa, indica, and ruderalis — though the validity of these distinctions remains debated in botanical circles.

The genus name Cannabis derives from the Greek kannabis, which itself likely traces to the Scythian or Thracian languages. Ancient Greek historian Herodotus described Scythian cannabis rituals in the 5th century BCE. The word has cognates across Indo-European languages: Sanskrit cana, Persian kanab, German hanf, Old English haenep (which evolved into hemp).

For most of recorded human history, the plant was known by local variations of this ancient root word or by culture-specific names derived from distinct linguistic traditions — bhang in Hindi, ganja from Sanskrit (later adopted into Jamaican English via Hindi-speaking indentured laborers), kif in North Africa, and dozens of others.

The word “marijuana” entered English through a different door entirely, and the circumstances of its arrival are inseparable from one of the most consequential episodes of racial politics in American history.

The Mexican Spanish Connection

The word “marijuana” (also spelled “marihuana”) entered American English in the early 20th century from Mexican Spanish, where it had been in common use since at least the late 19th century. The exact etymology of the Spanish term is disputed. Proposed origins include the Portuguese word mariguango (meaning intoxicant), a combination of the Spanish names Maria and Juana (Mary and Jane), or derivation from an indigenous Nahuatl word.

What is not disputed is the context in which the word crossed into American English. In the early 1900s, increasing Mexican immigration to the American Southwest — accelerated by the Mexican Revolution of 1910 — brought cannabis smoking culture into contact with Anglo-American society. Mexican laborers and immigrants commonly smoked cannabis recreationally, and the practice was initially of little concern to American authorities, who were familiar with cannabis as an ingredient in patent medicines and tinctures sold openly in pharmacies.

The critical shift occurred when anti-immigration sentiment, racial prejudice, and the politics of Prohibition converged to transform a familiar plant into an alien threat. The use of the Spanish word “marijuana” — rather than the familiar English term “cannabis” — was central to this transformation.

Harry Anslinger and the Deliberate Rebranding

Harry J. Anslinger, the first commissioner of the Federal Bureau of Narcotics (1930 to 1962), is the individual most responsible for establishing “marijuana” as the dominant term in American English and for linking it explicitly to racial fear.

Anslinger’s anti-cannabis campaign relied heavily on associating the drug with Mexican immigrants and Black Americans. He deliberately used the foreign-sounding “marijuana” rather than “cannabis” in public statements, Congressional testimony, and press communications. The strategy was straightforward: if Americans understood that “marijuana” was the same plant they knew as “cannabis” — which had been legally available in pharmaceutical preparations for decades — the alarm would be less effective. By using an unfamiliar Spanish word, Anslinger could present a familiar substance as something new, foreign, and threatening.

Anslinger’s public statements from this period are explicit in their racial framing. He testified before Congress and wrote newspaper columns that directly tied cannabis use to violence by Mexican immigrants and Black jazz musicians. He compiled what he called his “Gore File” — a collection of violent crimes that he attributed to marijuana use, with heavy emphasis on the perpetrators’ race or ethnicity.

This campaign was not conducted in a vacuum. It operated alongside broader nativist politics, Jim Crow laws, and the post-Prohibition search for a new enforcement mandate for federal narcotics agencies. The Marihuana Tax Act of 1937, which effectively criminalized cannabis at the federal level — a pivotal moment in the history of cannabis legalization — passed in part because many legislators did not realize that “marihuana” was the same plant as cannabis — a confusion that Anslinger cultivated deliberately.

The American Medical Association actually opposed the Marihuana Tax Act, with AMA legislative counsel William C. Woodward testifying that the AMA had been unaware until late in the process that the bill referred to cannabis, which was still recognized as having legitimate medical applications. His objection was overridden.

The Racial Enforcement Pattern

The language choice was not merely rhetorical. It shaped enforcement patterns that persist to this day.

When cannabis was criminalized under its foreign-sounding name, enforcement disproportionately targeted the communities that had been used to justify criminalization. Mexican immigrants in the Southwest and Black Americans in urban centers bore the overwhelming majority of marijuana arrests throughout the mid-20th century, despite comparable usage rates across racial groups — a disparity that has been exhaustively documented.

According to data from the American Civil Liberties Union, Black Americans were 3.73 times more likely than white Americans to be arrested for marijuana possession as of 2018, despite roughly equal rates of use. In some jurisdictions, the disparity exceeded 8 to 1. These patterns have been consistent for decades and persist even in states that have decriminalized or legalized cannabis.

The term “marijuana” is intertwined with this enforcement history. It was chosen to other the plant, and the othering served as cover for the othering of people. This is not a retroactive interpretation — it is evident in the primary source documents of the prohibition campaign itself.

The Industry Shift to “Cannabis”

Beginning in the mid-2010s, as state-level legalization expanded and the legal cannabis industry professionalized, a deliberate terminological shift gained momentum. Industry organizations, advocacy groups, scientific publications, and some government agencies began systematically replacing “marijuana” with “cannabis.”

The National Organization for the Reform of Marijuana Laws — whose very name contains the older term — adopted a style guide preferring “cannabis” in its publications while retaining its established acronym (NORML). The National Cannabis Industry Association, founded in 2010, chose “cannabis” for its name from the outset. Academic journals including the Journal of Cannabis Research and Cannabis and Cannabinoid Research signaled their positioning through nomenclature.

State legislatures have reflected this shift unevenly. Illinois titled its 2019 legalization statute the Cannabis Regulation and Tax Act. New York’s 2021 legislation created the Office of Cannabis Management. But other states have retained “marijuana” in their legal frameworks — California’s key ballot initiative was titled the Adult Use of Marijuana Act, and Oregon’s regulatory body is the Oregon Liquor and Cannabis Commission, having changed from “marijuana” to “cannabis” in its name in 2021.

At the federal level, the terminology remains mixed. Federal law still uses “marihuana” (with the older spelling) in the Controlled Substances Act of 1970. The DEA uses “marijuana” in most communications. However, proposed federal legislation has increasingly adopted “cannabis” — the Cannabis Administration and Opportunity Act, introduced in the Senate in 2022, uses “cannabis” throughout.

The Counterarguments

Not everyone in the cannabis space supports the terminological shift, and the dissenting perspectives deserve honest consideration.

The familiarity argument. “Marijuana” remains the most widely recognized and commonly used term among American consumers. Google search data consistently shows that “marijuana” generates higher search volume than “cannabis” for consumer queries. The argument is practical: if the goal is communication, using the term that most people actually use is more effective than insisting on a term that many consumers associate with scientific or bureaucratic language.

The reclamation argument. Some advocates — particularly from communities most harmed by marijuana prohibition — argue that abandoning the term “marijuana” allows the industry to distance itself from the communities that bore the costs of criminalization. Under this view, the predominantly white-owned legal cannabis industry’s preference for “cannabis” is itself a form of erasure — rebranding the product to make it palatable for mainstream (read: white) consumers while the communities that were criminalized for “marijuana” remain largely excluded from the legal market.

This is a substantive critique. The legal cannabis industry in the United States is overwhelmingly white-owned. A 2021 analysis by Leafly found that Black-owned businesses represented approximately 2% of cannabis dispensary owners, despite Black Americans comprising approximately 13% of the population and having been disproportionately impacted by marijuana enforcement for decades. If the terminology shift from “marijuana” to “cannabis” helps the industry shed its associations with communities of color while those communities see little benefit from legalization, the rebranding serves the interests of capital more than justice.

The linguistic neutrality argument. Some linguists and commentators argue that the word “marijuana” has, through decades of common usage, shed its original racial associations for most English speakers. By this reasoning, insisting on its retirement assigns more power to the word’s origins than to its present meaning — similar to debates about other words whose etymologies are offensive but whose contemporary usage is neutral.

International Terminology

The U.S.-centric debate over “marijuana” vs. “cannabis” does not map cleanly onto international usage, where the terminology landscape is different.

Canada, which legalized recreational cannabis federally in 2018, uses “cannabis” exclusively in its legal framework (the Cannabis Act). The term “marijuana” is not used in Canadian federal law and is uncommon in Canadian regulatory and industry contexts.

The United Kingdom uses “cannabis” in its legal framework (the Misuse of Drugs Act 1971) and in common usage. “Marijuana” is understood but sounds distinctly American to British English speakers.

Germany, which legalized recreational cannabis in 2024, uses Cannabis in its legislation (Cannabisgesetz) and regulatory framework. The English loanword “Marihuana” exists in German but is not used in official contexts.

Uruguay, the first country to legalize recreational cannabis nationally (2013), uses “cannabis” in its legislation and “marihuana” in colloquial Spanish. The coexistence of both terms in a Spanish-speaking country that has had legal cannabis for over a decade suggests that the terminological anxiety is primarily an American phenomenon driven by the specific racial history of American prohibition.

The United Nations uses “cannabis” in its drug control treaties (the Single Convention on Narcotic Drugs, 1961) and associated documentation. “Marijuana” does not appear in UN drug policy frameworks.

The international pattern is clear: “cannabis” is the global standard in legal, scientific, and regulatory contexts. “Marijuana” is an American colloquialism with a specific political history that has not been adopted internationally.

The Scientific Convention

In scientific literature, the question is effectively settled. Botanical, pharmacological, and medical research uses “cannabis” almost exclusively. PubMed search data shows that papers published between 2020 and 2025 use “cannabis” in their titles at roughly four times the rate of “marijuana.” The journals that accept the most cannabis research — Neuropsychopharmacology, the Journal of Psychopharmacology, Psychopharmacology, Frontiers in Pharmacology — use “cannabis” in their style guides.

This convention predates the current political debate. Scientific nomenclature has always preferred the Linnaean genus name over colloquial terms. You would not submit a paper about Coffea arabica titled “A Study of Joe.” The shift in scientific literature toward “cannabis” is not a political statement — it is adherence to standard taxonomic practice.

However, clinical and public health research sometimes retains “marijuana” when it is the term used in the data sources being analyzed. If a study analyzes arrest records that categorize offenses as “marijuana possession,” the paper will use “marijuana” in that context. If a survey asks respondents about “marijuana use,” the paper reports results using the survey’s terminology. This practical consideration means “marijuana” has not disappeared from the scientific literature and is unlikely to.

In certain legal contexts, the distinction between “cannabis,” “marijuana,” and “hemp” has material consequences.

The 2018 Farm Bill legalized “hemp,” defined as Cannabis sativa L. with a delta-9 THC concentration of not more than 0.3% on a dry weight basis — a distinction explored in depth in our guide to hemp vs. marijuana. The same plant above 0.3% THC remains a Schedule I controlled substance under federal law, where it is called “marihuana.” Both hemp and marijuana are cannabis. The legal distinction is entirely based on THC content, but the terminology creates the framework for wildly different regulatory regimes.

This terminological distinction has enabled the legal hemp-derived cannabinoid market — delta-8 THC, THCa flower, CBD products — that operates in a gray area where products are technically “hemp” (legal) even though they produce effects identical to “marijuana” (federally illegal). The words are not just labels; they are the basis of the legal architecture.

State-level variations add further complexity. Some states define “marijuana” and “cannabis” differently in their legal codes. Washington state’s original legalization initiative used “marijuana” throughout; the state has since passed legislation changing the term to “cannabis” in its Revised Code. The process of updating every statutory reference is ongoing and has created transitional confusion in some regulatory contexts.

Where the Language Is Heading

The trajectory is clear even if the timeline is not. “Cannabis” is displacing “marijuana” in legal, scientific, regulatory, and industry contexts. Among consumers, the transition is slower — “weed,” “pot,” and “marijuana” remain common in everyday speech, and “cannabis” can sound clinical or pretentious in casual conversation.

Language evolves through use, and no editorial style guide can mandate how people speak informally. The shift from “marijuana” to “cannabis” will not erase the older term from colloquial English, nor should advocates expect it to. Words are not eliminated by decree. They fade when they stop being useful, and “marijuana” remains useful in casual contexts because it is widely understood and phonetically distinctive.

What the shift can accomplish — and what it is already accomplishing — is the delinking of official, legal, and professional discourse from a term that was deliberately chosen to associate a plant with racial prejudice. The scientific name was always available. It was set aside for political reasons. Returning to it is a correction, not a rebrand.

The words we choose to describe cannabis are not trivial — and you can explore more of this evolving language in our glossary. They reflect who gets to define the plant, who benefits from its legalization, and whose history is acknowledged in the process. Whether you call it cannabis, marijuana, or weed, understanding why those options exist — and what each one carries — is itself a form of literacy about an industry and a movement that is reshaping American law, culture, and commerce in real time.

The plant does not care what you call it. The people affected by its prohibition do.