Plant
What hemp actually is — botany, cannabinoids, and why it will not get you high.
Hemp
Cannabis sativa grown within a legal THC ceiling, for fiber, seed, or extract rather than intoxication.
Plant & chemistryCannabis
The plant genus (and its psychoactive flower) regulated for THC content; hemp is its low-THC legal form.
Marijuana
A common (often legal/colloquial) name for THC-rich cannabis; the same species as hemp.
Cannabinoid
A family of compounds produced by cannabis (THC, CBD, CBG, CBN...) that act on the body's endocannabinoid system.
Plant & chemistryTHC
The main intoxicating cannabinoid; the percentage of it in a plant or product is the central regulatory trigger.
Plant & chemistryCBD
A non-intoxicating cannabinoid sold for wellness; legal treatment varies and often hinges on residual THC.
Cannabichromene (CBC)
A non-intoxicating minor cannabinoid derived, like the others, from CBGA.
Plant & chemistryCannabidiolic acid (CBDA)
The raw acidic precursor of CBD in the living plant.
Plant & chemistryCannabigerol (CBG)
A non-intoxicating cannabinoid, often called the "mother cannabinoid".
Plant & chemistryCannabinol (CBN)
A mildly intoxicating cannabinoid formed as THC ages and oxidises.
Plant & chemistryEntourage effect
The hypothesis that cannabis compounds work better together than in isolation.
Plant & chemistryMinor cannabinoids (CBG, CBN)
Cannabinoids present in small amounts — CBG, CBN, CBC — increasingly isolated for specialty products.
Plant & chemistryTerpenes
Aromatic compounds that give cannabis and hemp their smell and may shape their effects.
Plant & chemistryTetrahydrocannabinolic acid (THCA)
The non-intoxicating acidic precursor of THC in the raw, living plant.
Plant & chemistryTrichomes
The tiny resin glands on cannabis flowers where cannabinoids and terpenes are made.
Plant & chemistryCultivar / chemotype
A specific bred hemp variety; its chemotype fixes the THC:CBD ratio that decides legal eligibility.
Plant & chemistryDry-weight basis
THC limits are measured against dried plant mass, not fresh weight — the standard reference for the percentage.
Plant & chemistryTotal THC (decarboxylation)
The combined THC + THCA figure after heating; many limits are written against total THC, not delta-9 alone.
3 concepts on the map
Every concept here maps onto the Atlas — see where it is grown, regulated and traded.
