Hemp vs Weed: The Difference Between Hemp, Marijuana & Cannabis

Hemp and weed are the same plant — literally. Both are Cannabis sativa L. The difference between them isn't botany; it's a legal line. Under U.S. federal law, a cannabis plant with 0.3% delta-9 THC or less by dry weight is hemp. Anything over that line is marijuana — the law's word for what most people just call weed. Same species, two rulebooks.

The short answer: same plant, different legal name

So is hemp weed? Botanically, yes — hemp and weed are both cannabis. The 2018 Farm Bill drew the dividing line: it defined hemp as cannabis (and any part or derivative of it) containing no more than 0.3% delta-9 THC on a dry-weight basis, and removed that category from the federal controlled-substances list. Cannabis above the threshold stays federally classified as marijuana.

A growing cannabis plant doesn't know which one it is. A lab test decides — which is why hemp farmers have their crops sampled and certified before harvest. If a field tests "hot" (over 0.3%), it legally stops being hemp.

The 0.3% THC line that separates hemp from marijuana

The number itself is older than the Farm Bill. It traces back to a 1976 taxonomy paper that proposed 0.3% THC as a convenient way to distinguish fiber-type cannabis from drug-type cannabis — and its own authors called the cutoff arbitrary. Decades later, U.S. law adopted the same figure, and it now determines how a plant is regulated, taxed, and sold.

Two details matter. First, the 0.3% limit describes the plant, measured as a percentage of dry weight — not the finished product on a shelf. Second, the line only applies to delta-9 THC specifically, which is why the wider family of cannabinoids gets complicated fast. Our Delta 9 vs THC explainer untangles the naming.

Does hemp have THC?

Yes. Hemp is not THC-free — it's THC-limited. Any cannabis plant produces some delta-9 THC, and hemp can legally carry up to 0.3% of it by dry weight. That sounds tiny, and in a stalk of fiber hemp it is. But percentages describe plants; milligrams describe products. Extract and concentrate the delta-9 from compliant hemp and you can produce a beverage with a real, labeled dose — say, 5mg per can — while the source plant still met the hemp definition.

Does hemp get you high?

The plant itself, grown for fiber, seed, or CBD? Essentially no — you could chew on a hemp stalk all afternoon and feel nothing but regret. Hemp seeds, hemp protein, and hemp-seed oil from the grocery store contain negligible THC.

Hemp-derived THC products are a different story. Delta-9 THC is the same molecule whichever plant it came from, so a 5mg hemp-derived dose feels like a 5mg dose, period — for most people, a light, social buzz. If you're curious what that's actually like, we've described it can by can in what a THC seltzer feels like.

Hemp vs THC vs CBD: keeping the words straight

Half the confusion in "hemp vs weed" is that the words operate at different levels. A quick glossary:

• Cannabis — the plant species. The umbrella term for both hemp and marijuana.
• Hemp — cannabis at or under 0.3% delta-9 THC by dry weight. A legal category, not a separate plant.
• Marijuana / weed — cannabis over the 0.3% line. "Weed" is slang; "marijuana" is the term U.S. law uses.
• THC — the molecule behind the buzz. Delta-9 is the form the law measures.
• CBD — a non-intoxicating molecule, usually extracted from hemp. No buzz on its own.

So "hemp vs THC" isn't really a versus at all — hemp is a plant category, THC is a molecule that every cannabis plant makes in some amount.

Why the hemp/weed difference matters for THC drinks

The legal category decides how a product reaches you. Marijuana and its THC are still federally scheduled, sold only through state-licensed dispensary systems in states that run them. Hemp and its derivatives came off the federal list in 2018 — which is why a lab-tested, hemp-derived delta-9 seltzer can be sold outside dispensaries in many states, sometimes straight to your door.

States layer their own rules on top, and they vary a lot — our state-by-state THC law guides track them. The federal picture is moving too: Congress revisited the hemp definition in late 2025, and we're following what that means for hemp-derived drinks in our hemp ban coverage.

LOKI sits on the hemp side of the line: hemp-derived delta-9, dosed in clear milligrams, third-party tested with published lab results, and sold 21+. If you'd rather taste the difference than read about it, the store locator knows where to look.