CANNALIB · STRAIN DOSSIER · BLACK JACK
Black Jack
3 independent sources put THC at 16 to 21%; 561 flower lab samples give a 10th to 90th percentile band of 14.006 to 26.1%; 8 recorded parents; 15 recorded descendants. It placed Oregon Growers Cup.
● frozen 2026-09-14 · API 0.7.0-stdlib
● evidence bar: thc 3 independent sources
● type: indica dominant hybrid
16 to 21%
THC, most-agreed claim
3 independent sources
14.006–26.1%
Flower lab range
10th to 90th percentile of 561 samples
8
Recorded parents
with sources, never guessed
15
Recorded descendants
through stated parent links
2/6
Cup results, verified/total
placings found in published results
10
Pictures on record
shown with source and credit
CHEMISTRY, CLAIM BY CLAIM
Every THC claim, and who made it.
| THC | Independent sources | Who states it |
|---|---|---|
| 16 to 21% | 3 | seedfinder, cannabis_intelligence, seedcity_local |
| 18% | 2 | or_prr00150, medical_effects |
| 21.32% | 2 | or_prr00150, replication_data |
| 25% | 2 | or_prr00150, cannabis_intelligence |
| 27.47% | 2 | or_prr00150, replication_data |
| 16 to 20% | 2 | cannaconnection, cropking |
| 19% | 2 | leafly_flat, leafly_flat_enrich, bank_blim-burn-seeds |
| 14 to 24% | 2 | hytiva, allbud |
| 0.556018% | 1 | smith_phytochem_sample |
| 0.556018 to 29.9821% | 1 | phytochem_smith, phytochem_lab |
2 more THC claims are on the live card.
Lab range 14.006 to 26.1% THC is the 10th to 90th percentile of 561 flower lab samples (median 19.95). CBD 0 to 0.188% over 248 samples. It is a band, not an average, and it is shown only because there are three or more samples.
top terpenes by stated value: Alpha Pinene, Beta Caryophyllene, Beta Myrcene, Alpha Humulene, Limonene, Linalool, Terpinolene, Caryophyllene Oxide
950 chemistry rows on record. Flagged rows never used as potency: 54 non flower, 290 quality flagged.
GROW CLAIMS
Height and flowering, as stated.
| Height | Independent sources | Who states it |
|---|---|---|
| 80 cm | 2 | seedcity, seedcity_local |
| 80 to 120 cm | 2 | seedcity, seedcity_local |
| 100 cm | 1 | seedfinder |
| 152.4 to 243.84 cm | 1 | cropking |
| 300 cm | 1 | cannabis_intelligence |
| Flowering | Independent sources | Who states it |
|---|---|---|
| 63 days | 4 | cannaconnection, seedfinder, cannabis_intelligence, alchimia |
| 56 to 63 days | 3 | seedcity, seedcity_local, cropking |
| 61 days | 2 | seedcity, seedcity_local |
| 49 days | 1 | seedfinder |
| 56 days | 1 | seedfinder |
| 60 days | 1 | seedfinder |
LINEAGE
Recorded parents, and how many sources agree.
| Parent | Sources | Who states it |
|---|---|---|
| Black Domina | 1 | seedfinder |
| Deep Chunk | 1 | seedfinder |
| Jack Herer | 1 | seedfinder |
| Arizona low confidence | 1 | strain_fact:allbud |
| Black Market low confidence | 1 | strain_fact:allbud |
| Blackjack low confidence | 1 | strain_fact:allbud |
| California low confidence | 1 | strain_fact:allbud |
| Jock Horror low confidence | 1 | strain_fact:allbud |
15 descendants through recorded links, including Big Jack, Black Jack Autoflower, Black Jack Automatic, Black Jack CBD, Colombian Jack, Black Jack F1 Fast Feminized Seeds, Cream Caramel, Sweet Cheese Auto. 10 sub-varieties and 0 phenotypes or cuts are linked to this cultivar.
COMPETITIONS AND AWARD CLAIMS
Cup results with sources; claims with verdicts.
| Year | Competition | Category | Place | Checked |
|---|---|---|---|---|
| 2023 | Oregon Growers Cup | Cartridges | 1 | unverified |
| 2023 | Oregon Growers Cup | Cartrides | 1 | unverified |
| 2022 | Oregon Growers Cup | Cartridges | 2 | verified |
| 2019 | The Emerald Cup | Outdoor - Outdoor - Private | 3 | verified |
| 2017 | Jack Herer Cup | Best Flower – Sativa | winner | unverified |
| 2016 | Jack Herer Cup | NEVADA / Flower – Sativa | winner | unverified |
Award claims checked
7 unchecked. Only confirmed claims count as wins on the live card; every other verdict is shown in words beside the claim.
PICTURES, WITH CREDIT
10 pictures on record. Three shown, each with its source.
credit: seedfinder.eu · shown with credit copyright unverified
credit: seedfinder.eu · shown with credit copyright unverified
credit: allbud.s3.amazonaws.com · shown with credit copyright unverified
How to read this page
Every value is a stated claim with its sources. Where sources disagree all claims are listed. The lab range is the 10th to 90th percentile of flower lab samples and is shown only from 3 samples. Nothing is averaged across sources.
Aliases on record: 018NY6XC00VT2JWVZ76S6DDRAD, black jack autoflowering feminized seeds bulk seeds, black jack autoflowering feminized seeds canuk seeds, black jack feminized seeds bulk seeds, black jack feminized seeds canuk seeds, black jack feminized seeds nirvana seeds, black jack feminized seeds sweet seeds, black-jack, sweet-seeds/black-jack, the-nuglab/black-jack. First listed by Blimburn. Observations on record: 25. Science links: 782.
dossier black-jack · frozen 2026-09-14 · citation score 62.4 · published by CannaLib, a Plausible Deniability project