Black R (Cannabis flos COSMA): a hybrid of Black Domina and White Russian with caryophyllene

Where does Black R come from and what does its pedigree say about it?

Black R was created by crossing Black Domina with White Russian, and two Polish industry sources additionally describe it as a phenotype of the Black Russian line. It is available in pharmacies as dried flower Cannabis flos from a single manufacturer, dispensed exclusively by prescription in the Rpw category. Both sources agree on its genetics being hybrid.

The pedigree recorded for this entry has two parents and comes from two independent descriptions, not from assumptions based on the name's sound. It is important to immediately clarify the boundary of such information. The pedigree indicates which breeding lines the variety was derived from, and that is where it ends. It does not predict the chemical composition of a specific batch or how anyone will react to the raw material.

The common part of the name can be misleading here. In Polish pharmacies, there are also Black Jelly and Black Tuna, but none of them share a defined parent with Black R, so the similarity of the first word does not create any kinship among them. The same note applies to the Russian part: the phenotype of the Black Russian line is a record of the origin of this one variety, not an invitation to add its relatives based solely on the catalog's sound.

Dried hemp available for retail sale, for example in the dried flower category in our store, comes from fiber varieties and is not a medicinal product. Black R belongs to a completely different regulatory shelf, and these two materials do not substitute for each other nor can they be compared.

Who supplies Black R to Polish pharmacies?

One manufacturer. Black R is available in the Polish pharmacy market solely as Cosma dried flower, and in the collected assortment, it corresponds to one entry. Therefore, there is no choice between versions from different companies, which can be real for more popular varieties. Comparing versions comes down to describing this one.

Availability is not a feature of the variety, but a state of stock, and changes faster than any description can become outdated. A single entry from one manufacturer means that there is nothing to replace a supply interruption. Where the same variety is handled by five companies, the lack of one version is compensated by another; here there is nothing to compensate for. The current state collects a summary of available strains.

You won't find prices in this text, and this is not an oversight. The price per gram and the cost of a month of therapy depend on the pharmacy and the reimbursement mode, changing more frequently than the assortment, and therefore are only listed in a summary table, where they can be updated in one place. The remaining products of this producer are described in a separate entry about portfolio Cosmy.

It is also worth noting what a single entry in the register means for repeatability. Subsequent batches of the same name come from separate collections, so the active substance content falls within the declared range, but is not identical in every package. It is the batch number on the packaging, not the variety name, that distinguishes specific deliveries.

What aroma and flavor do sources attribute to this variety?

The aroma description comes from one database and combines citrus notes with spicy, earthy, and herbal. This is a set of descriptors assigned to the entire catalog entry, not a measurement result, so we treat it as a report from one source, not as a confirmed feature. The second database that mentions this variety does not describe its scent at all.

Aromatic descriptors are the softest layer of data in variety descriptions. They arise from impressions, not from chromatography, and the same words mean different things to different people: spicy may mean clove to one author and pepper to another. Thus, the list of five notes indicates more the direction of the dried flower's character than what exactly the patient will feel upon opening the package.

The set of ingredients recorded for this strain includes caryophyllene, humulene, limonene, and myrcene, and this description of aroma is not disputed. The peppery impression is usually attributed to caryophyllene, the hoppy note is attributed to humulenowi, citrus limonenowi, and earthy mircenowi. This is a qualitative consistency and only that: it shows that the description of the aroma and the description of the composition come from the same reality, not that one results from the other.

There are no numbers next to the names of the profile ingredients here, and this is a decision, not an oversight. Polish databases publish shares without denominators: the same entries summed give 46, 73, or 83 percent at different times. Since the sum depends on who counted, a single value next to the ingredient name cannot be comparable between sources, and the entry in the article pretends to be precision that no one has measured.

How long does it take for this dried flower to take effect and how long does it last?

The method of administration determines the outcome more than the strain name. No absorption measurements have been published for Black R, so the ranges below describe the method of administration as such and apply equally to any dried flower from the pharmacy. We intentionally repeat the following paragraph in this service instead of rewriting the same fact eighty-five times in different words.

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.

There are no separate data for this entry, and it is hard to expect them. Pharmacokinetic studies are conducted for products with established, repeatable compositions, and flower dried differs between batches even within one name. The declared range of 19.8-24.2% refers to the potency of the raw material, not the rate at which this raw material will take effect.

What has been demonstrated about the effects of Black R, and what remains anecdotal?

Very little has been demonstrated, and not for this strain. The evidence we have pertains to a single ingredient in the profile, not the dried flower Black R, and what circulates in commercial descriptions and patient reports is a separate layer that should not be mixed with research. Below, we separate one from the other, starting with what has actually been measured.

The ingredient opening the profile of this strain has been the subject of two studies worth describing in detail, instead of summarizing with a catchphrase. The older one, authored by the Gertsch team (PMID:18574142), was published in the Proceedings of the National Academy of Sciences in 2008. It established that the molecule selectively binds to the cannabinoid receptor type two, with a constant of 155 nM, and that in animals equipped with this receptor, it suppresses the inflammatory response of the paw after carrageenan. When the receptor gene was silenced, the effect disappeared. This study did not include anxiety tests at all.

A newer one, by the Klauke team (PMID:24210682), appeared six years later in European Neuropsychopharmacology. After oral administration, the molecule shortened the second, inflammatory phase of the response to formalin in mice, without affecting the first phase, and again only with a functioning type two receptor. In a separate model, this time of pain caused by nerve damage, it reduced hypersensitivity to heat and the response to tactile stimuli, and repeated doses did not lead to increased tolerance.

Neither of the two studies tested caryophyllene on humans or in inhaled form from dried flower; both studies pertain to oral or systemic administration in mice in pain and inflammation models, not sleep or mood.

The profile of ingredients for this strain is described by one source. Another Polish database lists Black R, but does not provide the set or order of ingredients, so there is nothing to compare: this is not the consistency of two independent descriptions, but the absence of a second voice. Manufacturer materials and patient reports characterize this strain as balanced, but such a word does not come from measurement and does not carry any conclusion about efficacy.

What adverse effects have been reported after this strain?

For Black R, none have been reported by name. Safety monitoring is conducted at the level of medicinal products with a batch number, and the strain name is not a reporting unit, so separate statistics for this entry do not exist and will not be created. The following description pertains to hemp dried flower as a group of raw materials.

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 that can be added from the perspective of the strain itself is its declared potency. The range of 19.8-24.2% places Black R among those with high THC content, and the intensity of symptoms such as anxiety or increased heart rate rises with the dose taken. The assessment of whether this matters in a specific case belongs to the attending physician, not to the description of the strain.

At what temperature is this dried flower vaporized?

There is no specific temperature for the strain; there is a working range for the device. The boiling temperatures of individual profile ingredients may be provided as a guideline, but they are not a setting for the vaporizer and do not directly translate to it. Below, you can see why such a table fails particularly clearly with this profile.

Two things in this table spoil the whole idea of reading the profile by temperature. First: the component listed first for Black R boils well above two hundred fifty degrees, which is outside any range in which vaporizers for dried flower operate. Second: for humulene, public records provide a value measured under reduced pressure, and such a number cannot be placed in the same line with the others because it describes different conditions.

Additionally, there is a difference between the setting and the reality of the load. The number on the display describes the heating element or chamber, not the plant material inside, and the discrepancy can reach several dozen degrees, depending on the device's construction and the packing of the dried flower. This is broken down in a separate entry about why the vaporizer setting is not the temperature of the dried flower, and the discrepancies between the boiling tables are explained in another.

The conclusion from this comparison is brief and unimpressive. Boiling temperatures organize knowledge about molecules, but they are not suitable for selecting a setting for a specific strain name. The profile of Black R does not indicate a setting that would be more appropriate for it than for any other dried flower from the pharmacy.

Which strains from Polish pharmacies are related to it?

None. In the pedigree graph of this cluster, neither Black Domina nor White Russian appears as a parent of any other strain present in Polish pharmacies, so Black R has no siblings here. The pedigree is known, yet relatives are absent, and these two facts do not exclude each other.

An empty list can be a valid result, not a gap to be filled. Siblings arise when two strains from the pharmacy share an identified parent; if the parental line does not appear in any other pedigree, there is nothing to build a connection from. Adding a few similarly sounding names here would create a denser and completely false graph, and a false connection is worse than its absence because it looks like information.

Those looking for positions of a similar nature will find them more quickly by the leading ingredient than by the parents. Strains where caryophyllene is at the top of the profile are collected in a separate discussion of this ingredient, and a complete list of strains available in Polish pharmacies along with the current assortment is maintained by a comprehensive summary. None of these summaries replaces a conversation with the doctor managing the treatment.

The last caveat concerns the graph itself. It is based on pedigrees that breeders have revealed or did not want to reveal, so further source determination may add a connection that is currently absent. The lack of siblings thus describes the state of knowledge at the time of writing, not a permanent property of the strain.

Frequently Asked Questions about the Black R strain

Can Black R be purchased without a prescription?

No. Cannabis flos is a pharmaceutical raw material dispensed by a doctor's prescription in the Rpw category, so it cannot be obtained from a pharmacy without a valid prescription.

How many manufacturers supply Black R to Polish pharmacies?

One. In the collected assortment, there is one pharmacy item corresponding to the strain, produced by Cosma, so there is no choice between versions from different companies here.

What THC content is declared for this strain?

We provide it as a range of 19.8-24.2%. The allowable tolerance of the manufacturer reaches ten percent of the nominal value, so a single number does not describe what ends up in the package.

What components are listed in the terpene profile of Black R?

Caryophyllene, humulene, limonene, and myrcene. The set comes from one source, and we do not provide percentage shares next to these names because databases publish them without a denominator.

Does Black R have siblings among pharmacy strains?

No. The parents of this strain, namely Black Domina and White Russian, do not appear in the pedigrees of other strains present in Polish pharmacies, so the list of related items is empty.

Do studies confirm the effect of this strain on sleep or mood?

No. Available studies concern a single component of the profile administered to mice in pain and inflammation models, not the dried flower of this strain and not humans.

Editorial text ubucha.pl. Informational material about a pharmaceutical raw material issued by a doctor's prescription; it does not replace medical advice.