White Widow X (Cannabis flos Canopy Growth): lineage confirmed by the breeder

What is White Widow X and where does this strain come from?

White Widow X is a hybrid derived from White Widow and Cold Creek Kush. The lineage is directly stated on the Canadian breeder's website, so there is no need to guess it from the name. It reaches Polish pharmacies as a single entry from one manufacturer, described by the registered name Cannabis flos Canopy Growth. The producer does not disclose the terpene composition.

The record on which the pedigree graph of this cluster is based comes from the product card of Canopy Growth and the brand 7ACRES, where the genetics are described as White Widow x Cold Creek Kush. The letter X in the trade name is therefore a remnant of the crossing sign, not a number of the next version of the raw material. The second reference in the same record leads to the Polish strain database and was added because the declared strength of the pharmacy entry matches the Canadian equivalent.

Cold Creek Kush appears in this graph exactly once and does not have its own page in the cluster. The second parent is the opposite case: under the name White Widow, at least two independent companies maintain their own clonal line, each claiming theirs to be authentic, and none of the gathered sources resolves this dispute. The pedigree remains in the text as provided by the breeder, but on the maternal side does not clearly indicate a specific plant. This distinction returns below, when asking about siblings.

Which producers supply White Widow X to Polish pharmacies?

One. In the list of strains available in Polish pharmacies, this name appears once and is associated with Spectrum Therapeutics, which is the Canopy Growth brand. Therefore, there are no competing versions to choose from, nor a second entry of the same strain from another manufacturer. However, the state of the assortment can be variable.

The registered name usually carries a number, as that is how the labeling system works: the same dried flower gets a different designation when the declared content of the active substance changes. We provide it here without that component. The number entered in the name is a value declared by the manufacturer and subject to tolerance, so writing it down plainly would suggest a precision that does not exist. The same dried flower sold further as the same strain can have a different number in the documents.

The list of items present in pharmacies is not fixed. The permit for the raw material expires after five years and can be revoked, shipments from overseas come in batches, and the pharmacy orders what is currently available in the wholesaler. A strain with one manufacturer can disappear for several months and return under a changed registered designation. The current list along with the price comparison is maintained exclusively in the overview of currently available strains, and a broader picture of this producer's offer is gathered in a separate entry about Spectrum Therapeutics. Store category dried flower managed by this service is a completely different shelf and has nothing to do with pharmacy raw material.

What does White Widow X smell and taste like?

It is unknown. None of the two sources gathered in this project describes the aroma of this entry, and the pharmacy list only states the name of the leading terpene. Anything that could be written here about the scent would be a transfer of someone else's descriptions of another strain with a similarly sounding name.

Myrcene itself has a herbal and resinous scent, with a note reminiscent of overripe fruit, but this is a property of the molecule, not this strain. The label of the leading terpene only indicates which compound ranked highest in one designation of one batch. It does not say how much of it was present or what was alongside it, and the scent of the dried flower comes from the entire mixture of volatile components, not from one of them. Without numbers for the other compounds, such a label is insufficient even for a rough description.

The same breeding name smells differently from different manufacturers, as the set of volatile components is determined not only by genetics but also by the course of cultivation, the timing of harvest, and the drying method. A scent description copied from a foreign service does not describe the Polish entry, even if the name matches letter for letter. It is more honest to leave this field blank than to fill it with a statement that cannot be verified in any document attached to the packaging.

How long does it take for White Widow X to take effect and how long does the effect last?

After vaporization within a few minutes, after ingestion only after half an hour or longer. No one has published their own measurement for White Widow X, so these ranges describe the dried flower as a raw material taken by two routes, not this one pharmacy entry. The range between them is multiple.

The route of administration determines the course more than the variety itself. After vaporization, the substance passes from the lungs to the blood almost immediately, so the first sensations appear after a few minutes, the intensity increases for another ten to thirty minutes, and the whole effect lasts for two to four hours. After ingestion, the raw material first passes through the intestine and liver, so the first sensations are awaited from half an hour to two hours, and the episode can last six, sometimes eight hours. Hence the most common mistake with oral administration: anyone who thinks nothing is happening after thirty minutes and takes another dose will receive both doses at once. The above ranges describe the route of administration, not this variety; pharmacokinetic studies for a single cultivar have not been published.

The practical consequence for this strain is that the course will be determined by the vaporizer setting and the portion size, not the name on the package. Since the composition of this entry has not been described, there are no grounds to attribute it a faster or slower onset than another dried flower from the same shelf. The dosing scheme is established by the attending physician; this text describes the state of knowledge, not the method of dosing.

What is known and what is not known about the effects of White Widow X?

The terpene profile of this strain is not publicly documented, so nothing is known about its effects beyond what is known about dried flower in general. The pharmacy list indicates myrcene as the leading terpene, and only this single label serves as a reference point for any evidence.

The three studies referenced in this project concerning myrcene focus on the terpene itself administered to animals, not on dried flower or patients. We cite them because popular strain databases refer to the effects of myrcene without citing even one source, and the boundaries of these results are as important as the results themselves.

The oldest of these is a study by Vale TG, Furtado EC, Santos JG, Viana GS from 2002 (Phytomedicine, PMID:12587690). Myrcene administered intraperitoneally (100-200 mg/kg) reduced the locomotor activity of mice in an open field test, prolonged sleep induced by pentobarbital (by about 2.6 times at 200 mg/kg), and decreased the number of entries into the open arms of an elevated plus maze, which the authors described as a weak anxiogenic effect rather than anxiolytic.

Earlier research from 1990 discusses pain: Rao VS, Menezes AM, Viana GS, Journal of Pharmacy and Pharmacology, PMID:1983154. Myrcene (10-40 mg/kg) reduced pain responses in mice in hot plate and writhing tests induced by acetic acid; the effect was reversed by naloxone and yohimbine, indicating the involvement of alpha2-adrenergic receptors and the release of endogenous opioids.

The inhalation route was recreated as the only study by Wagner JK, Gambell E, Gibbons T, Martin TJ, Kaplan JS from 2024 (NeuroSci, PMID:39728677). With short puffs mimicking inhalation in humans, beta-myrcene acted anxiolytically in the elevated plus maze in female mice, and in males only with a single puff. Unlike linalool, myrcene did not produce a synergistic effect with cannabidiol in either sex.

In humans, myrcene alone has not been shown to alleviate insomnia at doses typical for inhalation of dried flower. The direction of the effect in rodents depends on the route of administration and sex: intraperitoneal injection in 2002 described a slightly anxiogenic effect, while inhalation in 2024 showed an anxiolytic effect in females. These two results do not negate each other; they simply show that the conclusion depends on conditions that no popular strain database provides.

What side effects have been reported after using White Widow X?

None under that name. There is no compilation of reports conducted for a single cultivar, and safety oversight ties the description of an event to a specific medication packaging, not to the name of the plant. Therefore, what can be stated honestly pertains to dried flower as a whole, not this single pharmacy entry.

Reports of adverse effects are collected for medicinal products with a batch number, not for the strain name, so the following pertains to hemp dried flower as a group of raw materials. The most frequently reported symptoms are dry mouth, red eyes, and increased heart rate. Dizziness upon rapid standing, daytime drowsiness, and temporary worsening of short-term memory are less frequently described, as well as anxiety that increases with dosage. A separate issue is medications taken concurrently, especially sedatives and those affecting coagulation: their assessment requires knowledge of the entire list of preparations, not just the description of the plant. We do not provide the frequency of these symptoms numerically, as public compilations for hemp dried flower in Poland do not separate them by individual products.

The only thing the strain adds to this is the fact that it is backed by a single manufacturer in one version, so there is no choice between items with different declared strengths. Everything that occurs after consuming the dried flower is reported to a doctor or pharmacist, and in the case of a suspected serious event, also to the national system for monitoring adverse effects of medicinal products.

At what temperature does White Widow X vaporize?

There is no setting specific to this particular strain, as its composition has not been described. However, a hard number can be provided for the terpene, which the list describes: myrcene boils at atmospheric pressure around 166.8 degrees Celsius, and this is the lower limit, not the target.

The number comes from the agreement of four source records collected in this project. One states 167 degrees for beta-myrcene, two give a range from 166 to 167, and the fourth states 332.6 degrees Fahrenheit at a pressure of 760 millimeters of mercury, which converts to exactly the same. They are backed by CAMEO Chemicals, the HSDB database, the HMDB database, and a compilation by the JECFA committee. The variation here is exceptionally small, which is not the rule with terpenes and deserves to be noted.

However, the boiling point is not a setting of the vaporizer. The indication on the device describes the heating element or the airflow, not the dried flower lying in the chamber, and the discrepancy between the two can reach several dozen degrees. This is addressed in a separate entry of the cluster about how the setting differs from the temperature of the dried flower, and the second explains why those circulating online terpene temperature tables. contradict each other. The range used for medicinal dried flower is determined individually and does not result from one number for one compound.

Which strains are related to White Widow X?

None of the eighty-five strains described in this cluster. The lineage of White Widow X is known, but neither of its two parents generates siblings here: Cold Creek Kush appears in the graph once, and White Widow is a collective name, not a single established breeding plant.

On the parent side, the name White Widow appears three times in this graph. Besides White Widow X, it is also held by Delahaze, which is additionally crossed with Super Silver Haze, and Jack Haze. We do not call them siblings here because the project maintains a list of parental names that are categories or disputed lines and excludes them from counting a common parent. White Widow made it onto this list because it is maintained independently by at least two companies, each claiming authenticity, and there is no record that would resolve this.

The same mechanism is visible in the records of the Polish composition database. It contains a page titled White Widow X along with the name of the producer, but it is recorded under the key of the base strain shared with the position described as White Widow. Both names merge there into one record, causing the profile comparison to assign White Widow two positions from this database, while White Widow X has none. Nevertheless, the cluster maintains two separate entries, as in pharmacies these are two different positions from two different producers, and the strain sold simply as White Widow is described by its own page. Whether the same breeding line stands behind both is not determined, and we do not transfer the composition recorded under the shared key to this page.

The common part of the name is not, in fact, evidence in either direction. Among the ninety-eight names appearing in this graph on the parent side, seventy-seven appear exactly once, and only eleven have their own entry among the described strains. A well-documented pedigree can thus lead to emptiness: thirty-one out of eighty-five strain orders have established parents and an empty list of siblings. This is a result, not a gap to fill. More about the leading terpene of this strain is discussed in a separate entry about mircenie.

Frequently asked questions about White Widow X

Is White Widow X the same strain as White Widow?

We do not determine this. In the pharmacy list, these are two separate entries from two different manufacturers, and the cluster maintains separate entries for them. However, the Polish composition database records them under a common key of the base strain, so the records of both names merge into one entry there.

What is the terpene profile of White Widow X?

It is not publicly documented. None of the two sources collected for this project provide the composition of this item. The pharmacy list describes it with a single leading terpene label, which is myrcene, and that is not the same as the composition.

How many producers supply White Widow X to Polish pharmacies?

One, Spectrum Therapeutics, which is a Canopy Growth brand. The strain list shows a single entry next to this name. Availability changes over time, so we keep the current status in a separate strain overview.

Is the lineage of White Widow X known?

Yes. The breeder's website states that it is a cross of White Widow with Cold Creek Kush, and this record forms the pedigree graph of this cluster. However, a known lineage does not imply sibling relationships among the described strains.

Can White Widow X be purchased without a prescription?

No. It is a pharmaceutical raw material issued exclusively by a doctor's prescription, in the Rpw category. The retail category of dried flower maintained by this service is something entirely different and does not contain pharmaceutical raw material.

How long does White Widow X last?

For this strain, it has not been measured. The duration primarily depends on the method of administration: after vaporization, the episode lasts a few hours, while after ingestion, it lasts several times longer. Pharmacokinetic studies for a single cultivar have not been published.

Dried flower is a pharmaceutical raw material issued by a doctor's prescription in the Rpw category. The material is for informational purposes only and does not replace consultation with the attending physician. The editorial text was prepared by redakcja ubucha.pl.