White Rhino
52d · easy
Seeds availableTop flavors
Terpenes
Jack Widow effects are mostly calming.
Jack Widow is a modern hybrid cannabis strain derived from the genetics of White Widow. Its cultivation characteristics reflect a moderate degree of difficulty, with plants reaching maturity after a 53-day flowering period. This strain is suitable for both indoor and outdoor environments and is known to produce a high yield. Its genetic legacy is marked by its role as a parent to the offspring known as Apolo Jack.
The chemical profile of Jack Widow is defined by a complex terpene hierarchy that begins with myrcene, followed by limonene, caryophyllene, and isopulegol. Further analysis reveals the presence of beta-pinene, linalool, pinene, nerolidol, humulene, bisabolol, caryophyllene-oxide, camphene, eucalyptol, terpinolene, ocimene, guaiol, gamma-terpinene, p-cymene, and alpha-terpinene. These compounds work in concert to establish the cultivar's specific aromatic and flavor profile, rooted in this precise order of dominance.
As a THC-dominant hybrid, Jack Widow is utilized primarily to address concerns regarding stress, pain, and sleep. Users typically report experiencing effects categorized as relaxed, happy, and uplifted. By providing this specific balance of therapeutic sensations, the strain remains a functional selection for those seeking relief in these targeted areas of application.
Synergies (+) and conflicts (−) are relative to each other within this profile.
| Terpene | Share | Character | Likely role |
|---|---|---|---|
| myrcene | ~60% | earthy | relaxing · solo |
| caryophyllene | ~28% | spicy | relaxing · social |
| limonene | ~12% | citrus | social · creative |
Research notes below describe isolated terpene mechanisms and early findings. They do not guarantee effects from this strain and are not medical advice.
Russo 2011: naloxone-sensitive analgesia, potentiates barbiturate sleep; dominant sedating terpenoid; blocks hepatic carcinogenesis by aflatoxin.
~28%
spicy
●●○○
Russo 2011: only terpene that is a selective full CB2 agonist (100 nM); Gertsch et al. 2008: acts as dietary cannabinoid; unique anti-inflammatory and gastric cytoprotective properties.
Russo 2011: increases serotonin in prefrontal cortex + dopamine in hippocampus via 5-HT1A; Johns Hopkins 2024: significantly reduced anxiety vs THC alone.
Reported effects — derived from terpene chemistry and cannabinoid profile.
Primary endpoint of myrcene+linalool sedating combinations; GABA modulation is the dominant mechanistic driver.
Limonene anxiolytic/antidepressant via serotonin elevation in prefrontal cortex (Russo 2011); mood improvement without full euphoria; key for balanced-1-1 profiles.
Equal indica and sativa genetics. Balanced body and mind effects.
High THC, trace CBD. Psychoactive. Full CB1 agonism — euphoria, appetite, analgesia.
Parentage, ancestry, and genetic relatives of Jack Widow.
Ancestry
Great-great-grandparents
Great-grandparents
Grandparents
Siblings
Share parent white widow
Offspring — 1 strains bred from Jack Widow
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Predict the terpene profile, effects, and growing traits of a cross. Our gene weaver engine votes on dominant traits from both parents.
Build a cross with Jack Widow →Same primary terpene with overlapping effects.
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Seeds availableJack Widow is modeled here as a balanced hybrid (equal indica and sativa genetics).
Myrcene is shown as the dominant terpene at approximately ~60%. Caryophyllene follows as the secondary terpene.
Jack Widow is versatile and works across different times of day depending on dose and individual response.
See the "Data confidence" card in the sidebar. Terpene profiles and effects are chemistry-informed estimates — individual responses depend on phenotype, source, and personal chemistry.