Shishkaberry from CanPoland: lineage after Blueberry and profile from a single source

• Who supplies. Exclusively CanPoland, so there is nothing to compare versions, and a supply break means the absence of this strain, not another version of it.
• Profile. Myrcene leads, alongside caryophyllene, limonene, and ocimene. We do not provide percentage shares because sources count them against different wholes.
• Origin. The lineage is established, with parents being Dj Short Blueberry and Afghani.
• What is missing. The profile describes a single source, so there is nothing to compare it with.

What is Shishkaberry and where does this strain come from?

Shishkaberry is a hybrid with a documented lineage: a cross of the DJ Short Blueberry line with an unspecified Afghan strain, attributed to a breeder known as Breeder Steve and the seed company Spice of Life Seeds, dated 1996. It reached Polish pharmacies as a single entry from one producer.

The lineage is known only halfway, and that half has a proper name. DJ Short Blueberry is a specific breeding line conducted under the breeder’s name, so it can be pointed out. The second parent is listed in the source as an unknown Afghan strain, which is a label for an entire group of plants from one cultivation region. Such a record does not indicate a plant, only the area from which it originated.

The lineage record has two supports for us. The first is the Leafly database, which states the crossing of the DJ Short Blueberry line with an unspecified Afghan strain and ties it to the breeder and the year 1996. The second is the Polish list of pharmacy strains, describing the raw material from the producer CanPoland under the same name. The second support confirms the presence of the name in pharmacy circulation, but nothing resolves the origin of the plant.

In strain descriptions, two things usually merge: the breeding name and the pharmacy entry. The breeding name comes from the 1990s and describes the genetics of the seed. The pharmacy entry is the raw material from a specific producer, harvested in a specific cultivation cycle, with its own batch number. The consistency of the names alone does not guarantee that the plant under that label in two countries has gone through the same history.

How many producers supply this strain to Polish pharmacies?

One. In our list of pharmacy entries, Shishkaberry has exactly one entry, and it is backed by CanPoland. The registered name starts with the formula Cannabis flos and ends with the producer’s designation, and we intentionally omit the numerical part from its middle, the reason for this omission is described below.

The numerical part in the registered name looks like a measurement, but it is a declaration. The producer provides a nominal value from which it allows deviation, and only the pair of these two pieces of information describes anything. For this entry, our source provides only the nominal value, without deviation, so rewriting it here would mean pretending to precision that is not in the data. Therefore, it will not appear in this text even once.

One producer changes the situation at the pharmacy counter more than it looks on paper. With a name run by four producers, the absence of one entry in the wholesaler can be compensated by another with the same name. Here, there is no such substitute: the producer disappears, the name disappears.

The presence of the name in the pharmacy is not a permanent state and changes faster than the text about the strain. Behind each entry stands a permit with its own expiration date, a distribution agreement, and a cultivation cycle counted in months. It is enough for one of these links to fall out, and the name disappears from the list without announcement. The database from which we take the composition of this strain marks its position as withdrawn. We maintain the current state exclusively in the list of available strains, because only there can it be corrected monthly. Separately, we describe the producer itself and the second strain that it supplies.

What does Shishkaberry smell and taste like?

• caryophyllene caryophyllene
• limonene limonene
• myrcene myrcene (leading in the pharmacy list)
• ocimene ocimene

Unknown. The only source describing this strain leaves the aroma section empty, so no scent or taste is documented here. However, it fills the composition section, and that is all that can be said about the aroma of this strain without guessing based on the compounds alone.

The composition section lists four items for this strain: myrcene, caryophyllene, limonene, and ocimene. The compilation comes from a single source, as the second database we use in this cluster does not describe this strain at all. With one description, there is nothing to compare it with, so there is also no signal confirming that the composition was measured correctly.

Alongside the names, the source provides shares, but we do not transcribe them, and the reason for this is evident in this strain. The four numbers given for Shishkaberry sum to 101, which is more than the whole. Since the sum exceeds one hundred, the denominator is not the collection of all terpenes in the raw material, but something else that the source does not name. A number without a known denominator measures nothing, and it looks like a measurement. In the entire database, there are six such entries out of 145 described, with a median sum of 82.

More is known about the scent of the compounds themselves than about the scent of this strain. Myrcene is often described as earthy and herbal, caryophyllene as peppery, limonene as citrusy, and ocimene as sweet with a woody note. Combining these descriptions into one description of the strain would, however, be guessing: the proportions remain unknown, and the scent of the dried material also depends on drying and storage, not just on what the analysis showed.

How long does it take for this strain to take effect and how long does the effect last?

It does not depend on the strain, but on the method of administration. For Shishkaberry, no measurements of blood concentrations have been published, so the ranges below describe inhalation and oral intake of cannabis flower in general, and the name of the cultivar does not change anything in them. The same course applies to any other entry from this list.

The method of administration determines the course more than the strain itself, and the ranges below describe it, not this cultivar, because pharmacokinetic studies for a single cultivar have not been published.

For this entry, there is one more limitation. Since it is backed by one producer and a narrow supply stream, even if someone measured the course on its raw material, the result would describe that batch, not the label on the package. Measurement is tied to a batch of material, not to a breeding label from thirty years ago.

What has been shown about the effects of this strain, and what has not?

Nothing. No study has examined Shishkaberry as a cultivar, so nothing has been shown about the effects of this specific strain. Research pertains to a single compound, myrcene, which in the only published profile has the largest share here, and it was conducted on mice, not on prescription patients. We have three such studies in the evidence base of this cluster.

All three must be read together with their model, as the direction of the result changes with the method of administration and the sex of the animals. The following table presents them in chronological order, with what each of them showed.

Doses were administered in milligrams per kilogram of mouse body weight, and in two of the three studies, by intraperitoneal injection. Translating such a dose to one puff of vapor from flower is not arithmetic, and no one has published such a conversion. Separately stands what is not being studied: popular databases attribute balanced effects to this name, and commercial descriptions repeat this label without indicating where it came from.

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

What side effects have been reported from this strain?

None under this name. Public safety compilations do not go down to the level of cultivar, so the question about symptoms after Shishkaberry has no data-based answer. Below stands what has been documented for cannabis flower in general, and we directly note where these observations come from.

Reports of adverse effects are collected for a medicinal product with a batch number, not for a strain name, so the following pertains to cannabis flower as a group of raw materials. The most commonly reported are dry mouth, red eyes, and increased heart rate. Less frequently described are dizziness upon rapid standing, daytime drowsiness, and transient worsening of short-term memory, as well as anxiety increasing 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 cannabis flower in Poland do not separate them by individual products.

For this entry, there is one more reason why numbers will not arise. One producer and narrow presence in circulation mean that even if reports were separated by breeding names, the sample would be too small to count anything from it.

Can the vaporization temperature be adjusted for this strain?

No, and not due to lack of equipment. The method of taking the raw material is determined by the attending physician, and the numbers that popular tables reach are not mutually comparable for the four compounds in this profile, as they come from measurements taken at different pressures or without stating pressure at all.

Boiling point is sometimes presented as a threshold, beyond which a compound begins to vaporize, and this is a misunderstanding. Vaporization occurs much lower, and its rate increases exponentially with temperature. The boiling point is the moment when the vapor pressure equals the surrounding pressure, so without stated pressure, the number alone says nothing. The entire popular targeting of a selected terpene is based on this confusion of threshold with condition.

Hence the caution towards such tables. For three of the compounds in this profile, the database provides measurements referenced to atmospheric pressure, while for ocimene, just the number, without information on conditions. Setting four values in one column would suggest that they can be compared, but that is precisely what cannot be done. We outline this separately, on the occasion of questions about the comparability of popular temperature tables.

This section describes the state of knowledge about the compounds themselves. It is not a recommendation, does not refer to any device, and does not replace arrangements made with the attending physician.

Which strains from Polish pharmacies are related to it?

None. In this data, Shishkaberry stands on the side of the descendant, not the parent: it is not in the lineage of any other pharmacy entry from this cluster. On the parent side, it has the DJ Short Blueberry line and an Afghan strain, and the latter is a name for a family, not a single plant.

Searching the lineages of all 85 cultivars from this list shows not a single entry that would have Shishkaberry among its parents. Therefore, this strain has no descendants in Polish pharmacies, and entries stating otherwise simply cannot be found in the data.

It does share a common parent with two entries from the same list, and that does not prove anything. Blueberry and L.A Confidential have an Afghan strain in their lineage, just like ours. However, the Afghan strain remains a name for a family of plants from one region, not a plant that could be pointed out, so two cultivars sharing such an entry are not siblings. The same mechanism applies to entries like haze or og kush.

The name does not help either. The berry component is carried in this list, besides our entry, by four others: Blueberry, Northern Berry, Sweet Berry Kush, and Strawberry OG. The lineages diverge completely: Sweet Berry Kush descends from banana og and purple punch, and Strawberry OG from bruce banner number 3 and sfv og ibl. Only Northern Berry is interesting, which has blueberry recorded among its parents, while we have dj short blueberry recorded. In this database, those are two different strings, so the graph does not connect them and does not derive siblings from them. Resolving whether it is the same breeding line would require a source that is not present here, and adding it by intuition would create a false link between the two entries.

Frequently Asked Questions about the Shishkaberry strain

Is Shishkaberry currently available in Polish pharmacies?

The answer changes from month to month, which is why we maintain the current state exclusively in the list of available strains, not in this text. The database describing the composition of this strain marks its position as withdrawn.

How many producers supply this strain?

One. In our list of pharmacy entries, Shishkaberry appears once and is backed by CanPoland.

Why do you not provide the active substance content for this strain?

Because the source does not provide the deviation within which the declared number falls. The nominal value without this deviation suggests precision that is not in the data, so we omit it also in the registered name.

Which compound has the largest share in the profile of this strain?

Myrcene. The only source describing the composition places it first, ahead of ocimene, caryophyllene, and limonene.

Does Shishkaberry have siblings among pharmacy strains?

No. No other entry from this cluster shares an identified parent with it, and the common entry about the Afghan strain is a name for a family of plants, not a single plant.

Do studies on myrcene say anything about the effects of this strain in humans?

No. All three studies from the evidence base of this cluster were conducted on mice, and doses were given in milligrams per kilogram of animal body weight or as short puffs of vapor.

Cannabis flower is a pharmaceutical raw material dispensed by prescription in the Rpw category. The material is informational in nature and does not replace medical advice nor constitutes an encouragement to purchase. The flower offered in our store, in the flower category, is a different product than the pharmacy raw material and does not fall under this dispensing procedure.

Editorial text: ubucha.