Short answer. A name costs nothing to change, and the plant doesn't change with it. Genetic studies keep finding the same genotype under different names and different genotypes under one name [1][2][3]. In Nevada's medical market, 637 recorded names (396 after cleaning up spellings and obvious duplicates) sat on just three chemical profiles [4]. The shelf looks diverse; the gene pool underneath is narrower than the menu, and renaming hides how narrow. GenetixBay's answer is the GB-ID: a permanent record tied to the plant and its evidence, not to whatever it's called this year.
House position (founder's view). "Same cut, a thousand names" is out of hand, and it's part of why everything tastes the same: everything is being replaced or hybridised with similar material, and the gene pool is getting diluted. The studies below back the first half directly (names hide sameness). The dilution half is supported by evidence of narrow commercial chemistry and endangered landraces, but no one has yet measured commercial genetic diversity over time, so we label it carefully.
How one cut becomes a thousand names
These are practices, seen across markets. None needs bad intent; several often involve it.
| Practice | What happens | What it does to the record |
|---|---|---|
| Renaming a clone | A cut is passed on, the label is lost or dropped, and it gets a new name at the next stop | One genotype, several names |
| Rebranding a popular cut | A well-known clone is sold under a fresh name so it looks new or exclusive | One genotype, several names; the original's history disappears |
| Borrowing a famous name | An unrelated cross or seedling is sold under a name buyers already want | Several genotypes, one name |
| Seed lines sold as one "strain" | Every seed is a different genotype, but all share the name | Many genotypes, one name |
| "The original cut" claims | A cut is called the original without a chain of custody | An unverifiable claim attached to a name |
| Menu relabelling | Retail menus rename or regroup product to match demand or an "indica/sativa" slot | Names that track marketing, not plants |
| Mix-ups | Tags fall off in mother rooms, nurseries and supply chains | Honest errors that look like everything above |
The International Code of Nomenclature for Cultivated Plants says a cultivar name should be unique and not misleading [11]. Most cannabis naming has never been held to it, because for decades it couldn't be: under prohibition, a name passed by word of mouth was the only record there was.
What the genetic studies found
| Study | Material | Finding |
|---|---|---|
| Sawler et al. 2015 [1] | 81 drug-type and 43 hemp samples, 14,031 SNPs | In 6 of 17 comparisons (35 %), samples were genetically closer to samples with different names than to samples sharing their name. A sample sold as 100 % sativa was nearly identical (IBS = 0.98) to one sold as 100 % indica. The authors: genetic identity "cannot be reliably inferred by its name" |
| Schwabe & McGlaughlin 2019 [2] | 122 retail samples of 30 named strains, three US states, 10 microsatellites | Only 4 of 30 strains gave a consistent genetic assignment across all their samples. Two samples sold under different names (Larry OG and Tahoe OG) from the same outlet had identical genotypes. The authors: inconsistency "is evident and is not limited to a single source" |
| Watts et al. 2021 [3] | 297 samples with chemistry, 137 genotyped at 116,296 SNPs | Pairs of samples with the same cultivar name (e.g. OG Kush) were often as genetically and chemically distant as pairs with different names |
| Reimann-Philipp et al. 2020 [4] | Nevada medical lab records, January 2016 to June 2017 | 637 names; 396 after merging misspellings and obvious duplicates; three terpene-defined chemical clusters. The authors: "many different names are assigned to basically the same products" |
| Schwabe et al. 2022 [5] | 32 retail samples of four names from 21 Colorado outlets | Most samples within a name matched, but each name had outliers, and 55 untrained panellists could smell the difference between an outlier and its namesakes |
| Borin et al. 2025 [7] | 171 plants from 20 seed varieties bought from European distributors | Results "revealed doubts regarding the quality and identity" of some seed on the market, "probably mislabeled" or poorly produced |
Two honest caveats. Most of these studies are small, and genotyping with a few markers can call two close relatives "identical" (see what a DNA test can and can't prove). And some names hold up well: in [5], six of seven Blue Dream samples were one genotype. The pattern isn't "every name is false". It's that a name alone tells you nothing you can check.
Why renaming dilutes the gene pool
Renaming doesn't change a single gene. The damage is to what breeders think they're working with.
- False diversity. A breeder who crosses "two different strains" that are the same cut, or parent and child under new names, is inbreeding while believing they're outcrossing. Multiply that across a market and the hybrid swarm keeps folding back on the same few parents (see how hybrid strains emerged).
- The shelf converges. Commercial THC-dominant flower in six US states fell into three terpene groups, two of them holding about 87 % of samples [6]; North American licensed-producer material clusters into a handful of chemotype-linked groups [8]; and the Nevada data show the same few profiles hiding behind hundreds of names [4]. That's the chemistry of a narrow pool wearing many labels (see why everything tastes the same).
- Originals get lost. When a renamed cut displaces the original name, the original's history, and sometimes the original plant, drops out of circulation. Nobody hunts for a line they think they already have.
- Distinct material is replaced, not added. The traditional high-THC domesticates are endangered, with decades of hybridising having "obliterated differences" between them [9]. New names on old hybrids don't replace what's lost at source.being reviewed
The GB-ID answer
A GB-ID is GenetixBay's permanent identifier for a line, a cut, a batch or a plant. It never changes and is never reused, whatever the plant is called.
- The record follows the plant, not the name. A cut keeps one GB-ID however many names it picks up. Aliases are recorded, with who used them and when.
- Same name, different source, different record. Two lines sharing a name are linked as
shares_name, never merged on name alone (see why strain names are unreliable). - Claims carry evidence levels. "The original cut" is an L0 claim until there's chain of custody, grow-out evidence or a DNA match to a reference sample (L4). See documenting lineage evidence.
- Chemistry, not hype. Lab-tested terpene profiles sit on the record, so a genuinely different line can be found by what it is.
- Duplicates come out in the open. When two GB-IDs turn out to be one genotype, the evidence is added and the records are linked as the same plant, with both names kept as aliases.being reviewed
For growers and breeders
- Ask where a cut came from and who had it before. A name with no history is a claim.
- Before crossing two "different" lines, compare their records and, for important parents, their genotypes.
- If you rename nothing, you're already ahead: keep the name a cut arrived with and add your selection as a qualifier (see naming ethics).
- Register cuts and males with full history, including the names they've carried.
Common mistakes
- Assuming two names are two plants because the vendors are different.
- Assuming the same name is the same plant because the menu says so.
- Treating a small-marker "match" as proof of identity without a reference sample.
- Treating every name as a lie. Some are consistent; the point is to check.
Evidence
- Same name hiding different genotypes: Supported by several independent studies [1][2][3][5].
- Different names on the same genotype: Supported [1][2][4], with small samples.
- Names overstating chemical diversity: Supported [4][6].
- Narrow commercial gene pool and endangered landraces: Supported [6][8][9][10].
- Renaming as a cause of gene-pool dilution: founder's view, consistent with the evidence above but not directly measured.
The genotype is the set of alleles a plant actually carries, either at one locus or across its whole genome, as opposed to the traits you can see.Bag appeal is how good flower looks in the bag or jar, frost, colour, density and trim, which sells cannabis but does not measure its quality.The gene pool is the total set of alleles present in a population, cultivar group or species; a narrow gene pool limits what breeders can select from.A GB-ID is GenetixBay's permanent identifier, such as GB-GEN-0001842-6, for a genetic line, landrace, seed batch, plant, cut, grow, harvest, trial or document, so records never get lost or renamed.A renamed cut is a known clone sold or shared under a new name, so one genotype circulates under many labels and lineage records get muddied.A landrace is a traditional, locally adapted cannabis population kept by farmers in one region over many generations, with its own type and plenty of internal variation.A SNP (single nucleotide polymorphism) is a position in the DNA where plants differ by one base letter; thousands of them form the markers used in cannabis genotyping.OG is a cannabis family name tied to a group of influential clone-only cultivars from the 1990s, and general slang for "original" or long-established.Genotyping is reading a plant's DNA at selected markers to identify it, compare it with other plants, check sex or chemotype, or estimate its ancestry.A gene is a stretch of DNA that carries the instructions for one functional product, usually a protein such as an enzyme, and is the basic unit of inheritance.Inbreeding is mating between related plants, which raises homozygosity; an inbred line is the resulting population, measured by the inbreeding coefficient F.An outcross is a cross to an unrelated plant from outside the line, used to bring in new traits or vigour, or to rescue a line suffering inbreeding depression.Terpenes are volatile hydrocarbon compounds built from five-carbon isoprene units; in cannabis they are made in the trichome heads and are a major part of aroma and flavour.A hybrid is the offspring of two genetically different parents; almost all modern cannabis is hybrid, built from crosses between landrace-derived and other lines.GenetixBay evidence levels rate lineage claims from L0 (unverified) through L1 community reported, L2 breeder reported and L3 documented to L4 lab-confirmed.A terpene profile is the measured mix of terpenes in a sample, reported as each compound's % w/w and the total, used to describe and compare cultivar aroma chemistry.
