The Official Cannabis collection · sheet 18No 18 · Jack Herervs Critical Jack
Side by side
| Jack Herer | Critical Jack | |
|---|---|---|
| Type and lineage | Sativa label; Haze hybrid × (Northern Lights #5 × Shiva Skunk) account3,4 | Hybrid; Critical+ × Jack Herer2 |
| Median total THC | 19.59% (910 tests)5 | 15.01% (8 tests); small sample5 |
| Middle half of THC results | 17.13%–22.00%5 | 13.41%–20.68%5 |
| Leading lab terpenes | Terpinolene, β-Caryophyllene, α-Humulene (413 tests)5 | Too few tests report individual terpenes5 |
| Published aroma or report | Pine, woody and earthy; Leafly users report focused, energetic and creative3 | Pine, citrus and lemon; Leafly users report focused, energetic and uplifted2 |
Lab rows come from the same state lab dataset and matching rules for both strains.5
Lab-tested THC: Jack Herer vs Critical Jack
The practical distinction: Critical Jack
Critical Jack has a direct documented relationship: Dinafem and Leafly describe it as Critical+ × Jack Herer. That makes it a descendant, not another name for Jack Herer.1,2
What the comparison can and cannot show
The lab rows compare matched flower records, not a guarantee about any one product. Jack Herer has 910 matched tests from 9 states; the comparison row states the other strain's own test count.5 The family relationship is from Dinafem and Leafly; labels, batches and lab coverage can still differ.1,2
More comparisons
Sources
- Dinafem Seeds, Critical Jack. Accessed Oct 5, 2026.
- Leafly, Critical Jack strain information. Accessed Oct 5, 2026.
- Leafly, Jack Herer strain information. Accessed Oct 5, 2026.
- AllBud, Jack Herer marijuana strain information and reviews. Accessed Oct 5, 2026.
- Cannlytics (CC BY 4.0), cannabis_results: public state lab results (filtered and aggregated by Official Cannabis). Accessed Oct 5, 2026.