AN INDEPENDENT GUIDE TO CANNABIS KNOWLEDGE Information, with context.
CannabisAtlasFIELD NOTES / VOL. 01
Illustrative cannabis photo from Leafly; not a verified Jack the Ripper specimen
Illustrative photo: Leafly ↗
CULTIVAR FIELD NOTES

Jack the Ripper

sativa

Jack the Ripper, or JTR, is reported as Jack’s Cleaner crossed with the Space Dude male selection of Space Queen. The catalog connects it with Subcool’s The Dank.

Reported parentage · Explore family ↓Compare this strain ↗
Classificationsativa
THC · reference17%
CBD · referenceNot reported
Dominant terpeneTerpinolene
BreederSubcool’s The Dank
OriginNot verified
01 / REPORTED EXPERIENCES

Effects & flavor notes.

Explore the words people use to describe Jack the Ripper.

462reports on Leafly · whole profile
THE EXPERIENCE

Reported effects

Subjective feelings described by readers.

THE SENSORY NOTES

Flavors & aromas

Reader-reported flavor descriptors.

ALSO REPORTED

Unwanted effects

These are subjective reports, not guaranteed effects or medical conclusions. The report total covers the whole profile; individual tag frequencies are unavailable.

How to read these reports
02 / GENETIC CONNECTIONS

Parents, origins & family

Reported parentage
Jack the Ripper, or JTR, is reported as Jack’s Cleaner crossed with the Space Dude male selection of Space Queen. The catalog connects it with Subcool’s The Dank. This is a source-reported identity, not a genetically authenticated pedigree.

100%

Reported parents

THIS STRAINJack the RipperReported parentage

Children & later selections 0

No children linked in this catalog yet.

How to read these relationships

Parent links describe a reported cross. Ancestry components may be several generations back. A phenotype selection comes from a named line rather than a new two-parent cross. Disputed links retain the uncertainty of their source.

Names in this catalog open a strain profile. Other names open the reference describing the relationship. The family view shows the links currently documented here, not every known descendant.

03 / PLANT CHEMISTRY

Cannabinoid profile

CATALOG REFERENCE

Leafly catalog summary values, not laboratory results for a specific sample. A displayed 0% is a rounded source value, not proof of absence. Unlisted cannabinoids remain unknown.

Leafly source ↗ · Checked 2026-09-16

Concentrations vary by sample. A cultivar name alone does not establish potency.

Terpenes & aroma

Catalog-listed terpenes. Dominance is shown only where the source states it; percentages are unavailable unless separately recorded.

Similar strains

Similarity uses catalog reference chemistry, reported attributes and lineage. Missing data is excluded; this is not an effects prediction.

jack herer — photo from Leafly
Photo: Leafly
sativa02
Jack Herer

Jack Herer is named after the author and cannabis activist. Leafly attributes its development to Sensi Seeds and describes a Haze hybrid combined with Northern Lights #5 and Shiva Skunk ancestry. The source acknowledges multiple phenotypes, which matters when interpreting the name as a single record. Its terpinolene-led catalog profile and pine, wood and earth flavor tags describe different evidence types, not a guarantee that every Jack Herer sample shares the same composition.

Ancestry documented ↗
THC 18%CBD Not reported
Catalog reference valuesCompare +
Trainwreck — photo from Leafly
Photo: Leafly
hybrid03
Trainwreck

Trainwreck is associated by Leafly with Northern California and Mexican, Thai and Afghan ancestry. The source offers more than one story for its name rather than a single documented origin. Its summary classifies it as hybrid, while the narrative uses sativa language; these labels should not settle pedigree. Pine, earthy and woody are displayed reader tags, separate from a terpinolene-led catalog profile. The ancestry remains broader than an authenticated pair of immediate parents.

Ancestry documented ↗
THC 17%CBD Not reported
Catalog reference valuesCompare +

Compare with related strains

Choose another strain to compare →
04 / FOLLOW THE EVIDENCE

References & provenance

Editorial review pending. This public profile includes draft descriptions and attributed catalog information; source checks are not independent verification of every claim.

  • Leafly — Jack the Ripper identity and lineage

    Jack the Ripper, or JTR, is reported as Jack’s Cleaner crossed with the Space Dude male selection of Space Queen. The catalog connects it with Subcool’s The Dank. This is a source-reported identity, not a genetically authenticated pedigree.

    Accessed 2026-09-16
  • Leafly — jack the ripper catalog parameters

    Leafly catalog summary values, not laboratory results for a specific sample. A displayed 0% is a rounded source value, not proof of absence. Unlisted cannabinoids remain unknown. Terpene names and documented order come from the catalog; concentrations are not supplied. Effects, flavors and negative effects are reader-reported tags. The report count covers the profile as a whole, not individual tags.

    Accessed 2026-09-16

Updated 2026-09-18 · Our editorial standards