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

• Who supplies. Exclusively Canopy Growth, so there is nothing to compare versions with, and a supply break means the absence of this strain, not another version of it.
• Profile. It is led by myrcene. We do not provide percentage shares because sources count them against different totals.
• Origin. The lineage is established, the parents are White Widow and Cold Creek Kush.
• What is missing. Profile data is incomplete.

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 position from one producer, described by the registered name Cannabis flos Canopy Growth. The producer does not disclose the terpene composition.

The record on which the lineage 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 mark, 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 potency of the pharmacy position matches its Canadian counterpart.

Cold Creek Kush appears in this graph exactly once and does not have its own page in the cluster. The second parent is a reverse case: under the name White Widow, at least two independent companies maintain their own clonal line, each claiming theirs to be authentic, and no collected source resolves this dispute. The lineage remains in the text as provided by the breeder, but on the maternal side, it 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. There are no competitive versions to choose from, nor a second position of the same strain from another producer. However, the stock status can be variable.

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

The list of positions present in pharmacies is not fixed. The permit for the admission of 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 producer 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 review of currently available strains, and a broader picture of this producer’s offer is collected in a separate entry about Spectrum Therapeutics. The shop category hemp dry herb maintained 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?

Unknown. None of the two sources collected in this project describe the aroma of this position, and the pharmacy list only provides the name of the leading terpene. Everything that could be written here about the smell would be a transfer of someone else’s descriptions of another strain with a similarly sounding name.

Myrcene itself smells herbal and resinous, 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 stood alongside it, and the smell of the dry herb comes from the entire mixture of volatile components, not from one of them. Without numbers for the other compounds, such a label is not sufficient even for a rough description.

This same breeding name smells differently among different producers, 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 description of the smell copied from a foreign service does not describe the Polish position, 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. For White Widow X, no one has published their own measurement, so these ranges describe the dry herb as a raw material taken by two routes, not this one pharmacy position. The range between them is multiple.

The route of administration determines the course more than the strain itself, and the ranges below describe it, not the cultivar, as 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 size of the portion, not the name on the package. Since the composition of this position has not been described, there are no grounds to attribute it a faster or slower onset than another dry herb 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 cannabis dry herb in general. The pharmacy list indicates myrcene as the leading terpene, and only this one label is a point of reference for any evidence.

Three studies that stand under myrcene in this project concern the terpene itself given to animals, not the dry herb and not the patient. We cite them because popular strain databases refer to the effects of myrcene without citing even one position, and the boundaries of these results are as important as the results themselves.

In humans, it has not been shown that myrcene alone alleviates insomnia at doses typical for inhalation of dry herb. The direction of the effect in rodents depends on the route of administration and sex: after intraperitoneal injection in 2002, a slightly anxiogenic effect was described, and after inhalation in 2024, an anxiolytic effect in females. These two results do not cancel each other out; they only show that the conclusion depends on conditions that no popular strain database provides.

What side effects have been reported after White Widow X?

None under this name. There is no compilation of reports conducted for a single cultivar, and safety oversight ties the description of an event to a specific drug package, not to the name of the plant. Therefore, what can be stated honestly pertains to dry herb as a whole, not this one pharmacy position.

Reports of adverse effects are collected for a medicinal product with a batch number, not for the strain name, so the following pertains to cannabis dry herb as a group of raw materials. The most commonly reported symptoms are dry mouth, red eyes, and increased heart rate. Dizziness upon rapid standing, daytime drowsiness, and transient 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 because public compilations for cannabis dry herb in Poland do not separate them by individual products.

The only thing that this strain adds is the circumstance that it is backed by one producer in one version, so there is no choice between positions with different declared potency. Everything that appears after taking the dry herb is reported to the doctor or pharmacist, and in the case of suspected serious events, also to the national monitoring system for adverse drug reactions.

At what temperature is White Widow X vaporized?

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

This number comes from the agreement of four source records collected in this project. One gives 167 degrees for beta-myrcene, two provide a range from 166 to 167, and the fourth 332.6 degrees Fahrenheit at 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 from the JECFA committee. The spread here is exceptionally small, which is not a rule with terpenes and deserves noting in itself.

However, the boiling point is not the vaporizer setting. The indication on the device describes the heating element or airflow, not the dry herb lying in the chamber, and the divergence between the two can reach several dozen degrees. This breaks down a separate entry of the cluster about how the setting differs from the temperature of the dry herb, and another explains why the temperature tables for terpenes circulating online contradict each other. The range used for pharmacy dry herb is established 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 one established breeding plant.

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

This same mechanism is visible in the records of the Polish composition database. It has a page titled with the name White Widow X along with the producer’s name, but it is registered under the key of the base strain common with the S-LAB 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. The cluster still maintains two separate entries because in pharmacies these are two different positions from two different producers, and the strain sold simply as White Widow is described on its own page. Whether both are backed by the same breeding line, we do not resolve, and the composition recorded under the common key is not transferred to this page.

The common part of the name is not, in fact, evidence in either direction. Of 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 lineage can therefore lead to emptiness: thirty-one of eighty-five strain orders have established parents and an empty sibling list. This is a result, not a gap to fill. More about the leading terpene of this strain is discussed in a separate entry about myrcene.

Frequently asked questions about White Widow X

Is White Widow X the same strain as White Widow?

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

What is the terpene profile of White Widow X?

It is not publicly documented. None of the two sources collected in this project provide the composition of this position. The pharmacy list describes it with one label of the leading terpene, 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 the Canopy Growth brand. In the strain list, there is a single position associated with this name. Availability changes over time, so we keep the current status in a separate strain review.

Is the lineage of White Widow X known?

Yes. The breeder’s website states the cross of White Widow with Cold Creek Kush, and this record forms the basis of the lineage graph of this cluster. A known lineage does not, however, imply siblings among the described strains.

Can White Widow X be purchased without a prescription?

No. It is a pharmaceutical raw material issued only by a doctor’s prescription, in the Rpw category. The shop category of cannabis dry herb maintained by this service is something completely different and does not contain pharmacy raw material.

How long does White Widow X last?

This has not been measured for this strain. The course depends primarily on the route of administration: after vaporization, the episode counts in single hours, after ingestion it lasts several times longer. Pharmacokinetic studies for a single cultivar have not been published.

Cannabis dry herb is a pharmaceutical raw material issued by a doctor’s prescription in the Rpw category. The material is informational and does not replace consultation with the attending physician. The editorial text was prepared by the editorial team of ubucha.pl.