Soil characteristics, latitude and climatic stresses have been found to have significant effects on THC concentrations, and there are seasonal and even diurnal variations (Small 1979; Pate 1998b). However, the range of THC concentrations developed by low-THC cultivars (those typically with £0.3% THC) under different circumstances on the whole is limited, for the most part generally not varying more than 0.2 percentage points when grown in a range of circumstances, and usually less (note information in Scheifle et al. 1999; Scheifle 2000, Scheifle and Dragla 2000). Practically, this has meant in Canadian experience that a few cultivars have been eliminated from further commercial cultivation because they sometimes exceed the 0.3% level (‘Fedora 19’ and ‘Futura,’ authorized in 2000, have now been removed because some test results in several years exceeded 0.3%; ‘Finola’ and ‘Uniko B’ are under probation because of elevated levels), but on the whole most of the permitted cultivars have maintained highly consistent development of quite low levels of THC.

First, a little background. Industrial hemp was legal in the United States until Congress passed the Marihuana Tax Act in 1937. ("Some of our early presidents grew hemp," notes Sarah Lee Gossett Parrish, a cannabis industry attorney based in Oklahoma.) Nearly 80 years later, the 2014 Farm Bill took the position that states can regulate the production of hemp and, as a result, CBD. Then last year, President Trump signed a new Farm Bill that made it federally legal to grow hemp.


Inflammation is very common in both humans and dogs and can lead to chronic pain, arthritis, lupus, and other autoimmune diseases. Research has shown that CBD is able to help manage your dog’s pain and act as an anti-inflammatory and immune-boosting agent by activating our body’s Vanilloid receptor – the receptor known to mediate pain perception, inflammation, and body temperature.
Without arguing the merits of the above contentions, we point out that the legitimate use of hemp for non-intoxicant purposes has been inhibited by the continuing ferocious war against drug abuse. In this atmosphere, objective analysis has often been lacking. Unfortunately both proponents and opponents have tended to engage in exaggeration. Increasingly, however, the world is testing the potential of hemp in the field and marketplace, which surely must be the ultimate arbiters. De Guzman (2001), noting the pessimistic USDA report, observed that “Nevertheless, others point to the potential of [the] market. Hemp products have a growing niche market of their own, and the market will remain healthy and be well supported with many competing brands.”
Epilepsy. A specific cannabidiol product (Epidiolex, GW Pharmaceuticals) has been shown to reduce seizures in adults and children with various conditions that are linked with seizures. This product is a prescription drug for treating seizures caused by Dravet syndrome or Lennox-Gastaut syndrome. It has also been shown to reduce seizures in people with tuberous sclerosis complex, Sturge-Weber syndrome, and febrile infection-related epilepsy syndrome (FIRES). But it's not approved for treating these other types of seizures.
CBD refers to cannabidiol which is a certain compound found in cannabis referred to as a cannabinoid. Cannabis contains nearly 400 different compounds and many of those are specific to the cannabis species, these are what are known as cannabinoids. Hemp oil is special though as it is the key piece to many of the medical benefits we know medical marijuana to produce.  
We are all aware that cannabis strains are also used for medical conditions for humans, that is why as it was tested for dogs, it was proven that the cannabis oil for dog is also beneficial to such kind of diseases. However, the medicinal effects may vary depending on the dog. The results can be immediate or might take a while before you can even see. Sometimes, side effects might come first, but as long as you get the proper dosage, your dog would soon feel the benefits of it.
CBD refers to cannabidiol which is a certain compound found in cannabis referred to as a cannabinoid. Cannabis contains nearly 400 different compounds and many of those are specific to the cannabis species, these are what are known as cannabinoids. Hemp oil is special though as it is the key piece to many of the medical benefits we know medical marijuana to produce.  

Some immediate undesired side effects include a decrease in short-term memory, dry mouth, impaired motor skills and reddening of the eyes.[50] Aside from a subjective change in perception and mood, the most common short-term physical and neurological effects include increased heart rate, increased appetite and consumption of food, lowered blood pressure, impairment of short-term and working memory,[51][52] psychomotor coordination, and concentration.
The cool thing is that humans are not the only species known to have this Endocannabinoid system. Many species have been shown in research to have these receptors that cannabinoids have an effect too. One of the more popular researched species is dogs who have been shown to have positive reactions to medical marijuana but THC can be toxic for, this is a place for CBD oil for dogs to shine.

CBD is derived from either hemp (the rope and fabric stuff) or cannabis (usually the recreational stuff). It can be easy to get, is purported to offer many health benefits for pets (and people), and comes in anything from pills and oils to specialty treats. Often, you will find CBD in the form of an oil that can be given orally, although there are other products like biscuits and capsules easily found online. Most importantly, it won’t get your dog high, which is good news for dogs because of their extreme sensitivity to THC. 


Given its name, you might assume THCV shares psychoactive powers with its potent counterpart, THC. In reality, this cannabinoid is more like a cross between CBD and THC. From the former, it takes its modulating powers. Acting like THC “lite,” THCV like CBD can dampen the effects of a strong high. Yet at higher doses, THCV kicks into a psychoactive stimulant in its own right.
The list includes marijuana (undifferentiated by strain) and heroin. (While the federal government oversees marijuana research, marijuana use is regulated, in part, by state laws.) As a result, scientists who study the compound must follow a host of restrictive rules. Last year, responding to a request from several governors to change marijuana’s designation, the Drug Enforcement Administration announced that all cannabis would remain a Schedule 1 drug.
If medical marijuana is illegal in a given state, THC levels determine whether a CBD product is illicit or not. In most places, the limit is extremely low. We’re talking under 1 percent THC, with some states opting for a cap as low as 0.3 percent. In this case, the only source that would work is hemp, and CBD products will, therefore, be hemp-derived.

I bought the oil last year and misplaced it, so I never even tried it. But a friend had the cream when we were on vacation, and she allowed me to use hers. MIRACULOUSLY, the pain in my knees was INSTANTLY gone! Fortunately for me, this was at the time of your BOGO sale, so I stocked up. The only problem is, that as I allow others try mine, I keep giving my “free” one away! If you have any samples of your CBD products, please send them…it will save me money and you’ll have new customers!


I had a dog with lymphoma that was extremely aggressive…she was 12 when she was diagnosed, but was an active breed, and it too, started in her mammary glands, and I noticed it very early. She was extremely active/athletic – we decided due to her age, we gave her an amazing life, she was the dog of a lifetime and was just amazing (we rescued her a year old from a pet rescue that was going out of business – whatever wasn’t adopted was going to whatever shelters in the state that had room – they were no kill – the others that they were sending to weren’t all no kill….she was the only dog left….she was with another couple, they decided not to get her and handed my husband the leash. We were discussing it – it was 5 minutes before they were closing the doors for the last time, and she laid down at his feet. I told him it was up to him, but if he wasn’t going to do it, he had to take her in bc I simply couldn’t do it. He said “ok then, tell her bye bc we don’t know what will happen”…he reached for the door, swung it open and yelled “she’s coming with us and no one else!”), anyhow (sorry, lol), we decided not to treat the cancer and make her more sick, put off the inevitable….but to treat her symptoms and keep her comfortable. We started with a round of antibiotics while she was still strong (you never would’ve known anything was going on. I found 2 bilateral small mammary lumps when she was completely stretched on her back and I was rubbing her belly – she was all muscle – not a single ounce of fat – so they were very noticeable to me), as a prophylactic treatment for 2 weeks, then high dose steroids for 2 weeks (which can lower the white blood cell count and make them prone to infection, hence the antibiotics prior), then maintenance steroids to slow the growth. She remain EXTREMELY active through it all. About 2 months later, I guess she kinda hit a rough patch and everything grew…all of her mammary glands became huge to where when she tried to jump on things, to stomach was to tight and stretched, she was in pain and would miss, so she would really eye it, rock back and forth and put a lot of effort if she wasn’t patient enough for us to help her. Our vet put her on Gabapentin and increased the steroids, which slowed everything and helped her pain. Then her lymphnodes completely took off…under her front legs, around her neck…but she still remain active, eating and no change in pain, as if nothing was wrong. We were able to keep her comfortable a total of 5 months until it began wearing on her, then she began having cardiac changes and distancing herself from us for 3 days (both together, I’m a paramedic, I noticed she was staying into congestive heart failure), so we took her to end her pain. The point of all of this, and I’m sorry it took so long to get there….is that I wish that there was as much emphasis on the use of CBD for our terminal pets and the safety and efficacy of it just a year and a half ago as there is now. I was crying the other day talking to my husband about this bc I feel that it, and we could’ve helped her be so much more comfortable…I feel I failed her. In my opinion, with you being in the same situation…I was 1,000% use this on your baby!!! If I had the information back then, i wouldn’t have given it a second thought!!! Best of luck to you!! Sorry this was so long! Prayers for you and your pup!!

Your CBD cream was recommended to me by a co-worker. After her elderly father broke his foot, your CBD cream was the only thing that gave him true pain relief. So, I decided to order a jar. Your cream has been an absolute lifesaver! It immediately relieves my pain, and it seems that the more I use it, the better it works. I used to buy a prescription pain cream that cost me $300 per tube. I no longer need it, as your cream is just as, no *more* effective, and 1/10 the price.

The most effective cannabinoid to relax muscles is CBD (600mg inside). CBD cream has been shown to relieve pain more effectively than opioid pain killers. Use our CBD cream to help maintain optimal skin moisturization and help maintain skin revitalization and conditioning. Our uniquely formulated CBD topical cream can quickly absorb through the skin to help give you the muscle and joint recovery you need.
Deeper pockets are also helping them to dominate CBD products—derived from cannabis but without a high—that are of interest to some of the world’s biggest consumer companies, including... — Carol Ryan, WSJ, "U.S. Cannabis Law Is Helping Canada Make Hay," 27 Feb. 2019 Meanwhile, 10 states and Washington, DC, have legalized the intoxicating form of cannabis for recreational purposes, while 32 states have for medical uses. — German Lopez, Vox, "Trump and Congress just legalized hemp," 20 Dec. 2018 The state’s Cannabis Control Commission has since granted one dispensary a provisional retail license, and another company licenses to grow and transport non-medical cannabis. — Matthew Ormseth, courant.com, "U.S. Attorney in Massachusetts Says Opioids, Not Marijuana, A Priority As State Readies Retail Market," 10 July 2018 The city's mayor Alex Morse believes Holyoke is the ideal location for the cannabis industry in Massachusetts -- and possibly the country. — CBS News, "Holyoke, Massachusetts, is ready to welcome the marijuana industry with open arms," 30 June 2018 Rat offspring exposed to THC — tetrahydrocannabinol, the chief psychoactive ingredient in cannabis — and others that were not had to learn how to press one of two levers to get a sugar pellet reward. — Erik Lacitis, The Seattle Times, "‘Something wasn’t clicking’: WSU study shows offspring of pregnant rats exposed to THC have impaired development," 20 Nov. 2018 It's also derived from cannabidiol (CBD), one of the major compounds found in cannabis. — Sarah Jacoby, SELF, "Updated: What You Need to Know About Epidiolex, the First FDA-Approved Drug Made From Cannabis," 1 Nov. 2018 Attendees must bring their own cannabis, but smoking, edibles, and vaping are all encouraged as part of the creative process and the social experience. — Sarah Shemkus, BostonGlobe.com, "5 marijuana-infused things to do in New England," 21 June 2018 But Salmonella can also turn up in unexpected places — like in tahini, or on cantaloupes, or even drugs like cannabis and kratom. — Rachel Becker, The Verge, "Machine learning could help figure out what pooped on your produce," 12 Dec. 2018
It is for this reason that all the finished hemp goods that you see for sale in America, from food products to clothing to building materials, are part of an imported hemp industry that has surpassed $688 million annually. The size of this import industry is one of the major catalysts for hemp legalization in the U.S. As a renewable source of a range of products, hemp provides an exciting new step in American agriculture.
Epidiolex is the first FDA-approved treatment in the U.S. that contains a purified drug substance derived from marijuana -- CBD -- and the first treatment for Dravet syndrome. In September 2018 the FDA rescheduled cannabidiol from a C-I controlled substance to a C-V controlled substance, meaning it has a proven medical use but a low risk of abuse. This change allows Epidiolex to be marketed in the U.S.
Can cannabis help treat psoriasis? The active cannabinoids in cannabis may be an effective treatment for psoriasis. Research shows that they offer potential health benefits that could relieve the symptoms of psoriasis. They may be able to reduce inflammation and itching, control pain, and even heal wounds. Learn more about cannabis for psoriasis here. Read now
Our original pet CBD formula is infused with bacon flavored CBD rich hemp oil that your pets will love! CBD oil for pets is 100% natural and safe to consume as it has gone through extensive lab tests. Medix is a one stop destination when it comes to CBD oil for pets! What sets us apart from the competition is our dedication to quality and exceeding our customer’s expectations.
Due to almost a century of misinformation about Cannabis, the distinction between Cannabis and its two primary species — hemp and marijuana — has become unclear to the many and some even consider the three plants to be one in the same. Because of this, the three terms are often used interchangeably, which has created difficulties when understanding the usage and benefits of Hemp vs Marijuana and Cannabis in general.
More recent studies have focused on the mechanisms behind the schizophrenia–cannabis interaction. Epstein and Kumra (2014) tested the effect of cannabis on executive control of attention and cognitive function by comparing scores on the Attention Network Test among people with early-onset schizophrenia (EOS) and cannabis use disorder, only EOS, only cannabis use disorder, and controls. They found that the first group in particular had less efficient executive control of attention compared with those who had only EOS. They also found a smaller right caudal anterior cingulate cortex in subjects with EOS and cannabis use disorder. However, it is presently unclear whether this means that the smaller cortex surface leads to deficits in self-regulation and heavy cannabis use or if the direction of causation is in the opposite direction. More recent studies have suggested gene–environment correlation between cannabis use and schizophrenia in that the increased risk of schizophrenia after heavy and consistent cannabis use may be moderated by a shared gene that may explain part of the association (Power et al., 2014).
Because C. sativa has been a neglected crop for so long in North America, there are only negligible genetic resources available on this continent. Most germplasm stocks of hemp are in Europe, and the largest and most important collection is the Vavilov Institute gene bank in Leningrad. Figure 11 shows THC concentrations in the Vavilov collection, as well as in our own collection, largely of European germplasm. A disturbingly high percentage of the collections have THC levels higher than 0.3%, making it difficult to incorporate these into breeding programs.
Cannabis, also referred to as marijuana, has been an integral part of human civilizations for millennia. Both as a medicine and as a recreational substance, cannabis is the most popular illicit drug in the world. Today, the legal landscape that has prohibited marijuana for much of the twentieth century is giving way to decriminalization and full legalization. Legal, commercial cannabis businesses are already making an enormous economic impact.
“Hemp is of high nutritional quality because it contains high amounts of unsaturated fatty acids… Linoleic acid and alpha-linolenic acid are the only two fatty acids that must be ingested and are considered essential to human health … In contrast to shorter-chain and more saturated fatty acids, these essential fatty acids do not serve as energy sources, but as raw materials for cell structure and as precursors for biosynthesis for many of the body’s regulatory biochemicals…”  
There are also CBDs in treat form that you can purchase to some companies. In this case, you need to cut the treat in quarters and gradually increase the dosage again. Make sure that you follow the instructions indicated by the manufacturers regarding the dose and your pet’s size. Be careful where you keep these treats, though. You can’t give it to your dogs like a regular treat because it might get overdosed and have side effects that you might not like.
These mounting developments in the elicited a problem amongst cannabis cultivators across the US: decades of selectively breeding cannabis to achieve the maximum amount of THC for a strong high reduced the overall preponderance of CBD in cultivars across the country to trace lows. Essentially, CBD had been selectively bred out of existence across the country.
Given CBD’s reputation as a popular, artisanal remedy, one would think that Epidiolex would command a lot of “off label” attention. After all, physicians often prescribe pharmaceuticals off label to treat conditions that were not the actual focus of clinical trials. But the costly price tag for Epidiolex (more than $30,000 annually) precludes off label prescribing as well as affordable access for tens of millions of Americans without health insurance.
Hemp rope was used in the age of sailing ships, though the rope had to be protected by tarring, since hemp rope has a propensity for breaking from rot, as the capillary effect of the rope-woven fibers tended to hold liquid at the interior, while seeming dry from the outside.[44] Tarring was a labor-intensive process, and earned sailors the nickname "Jack Tar". Hemp rope was phased out when manila rope, which does not require tarring, became widely available. Manila is sometimes referred to as Manila hemp, but is not related to hemp; it is abacá, a species of banana.

Brain receptors are not only sensitive to neurotransmitters produced naturally within the brain, like dopamine or serotonin, but also chemical messengers produced outside the body, such as plant cannabinoids like THC or CBD. So when you ingest an edible or inhale some vapor, you’re allowing compounds originally produced by a plant to enter your body, travel through your bloodstream, and enter your brain. Once they arrive, these plant-derived compounds can influence brain activity by interacting with receptors on neurons. But they don’t interact with all neurons, just the ones that have the appropriate receptors.
Touted as a “superfood” containing a highly concentrated balance of proteins (less than soybeans, but much higher than wheat, oats, rye, corn, or barley), hemp seeds contain a balanced 1:3 ratio of omega-3 and omega-6 essential fatty acids (“essential” meaning your body can’t produce it, so it has to come from an outside source). This amounts to more than any fish and most fish oil supplements. They also offer super omega-3 stearidonic acid and super omega-6-gamma-linolenic acid (which the North American diet seriously lacks). Between these compounds, you get reduced inflammation, improved brain function, and lowered blood pressure, cholesterol, stroke, and heart disease risk, as well as increased energy and potential weight loss.
Carbon dioxide is passed through the plant material at a very specific temperature and pressure. Carbon dioxide, which is normally a gas at (or above) room temperature, can be pressurized until it becomes so dense that it takes on some of the properties of a liquid while still maintaining the fluid dynamics of a gas. In this state, CO2 is known as a supercritical fluid.
A chief argument that has been advanced in favor of developing hemp as a paper and pulp source has been that as a non-wood or tree-free fiber source, it can reduce harvesting of primary forests and the threat to associated biodiversity. It has been claimed that hemp produces three to four times as much useable fiber per hectare per annum as forests. However, Wong (1998) notes evidence that in the southern US hemp would produce only twice as much pulp as does a pine plantation (but see discussion below on suitability of hemp as a potential lumber substitute in areas lacking trees).
This article may contain certain forward-looking statements and information, as defined within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, and is subject to the Safe Harbor created by those sections. This material contains statements about expected future events and/or financial results that are forward-looking in nature and subject to risks and uncertainties. Such forward-looking statements by definition involve risks, uncertainties.

Technically speaking, its THC—the cannabinoid that gets you high—which is illicit. When you take a drug test, the aim is to detect THC in your body, not “cannabis.” If you possessed weed without any THC in it, technically you wouldn’t be in violation of the law. Because “weed” without THC has a different name: hemp. And the rules governing hemp are quite different from the restrictions placed on cannabis.
Cannabis is mostly used for recreation or as a medicinal drug, although it may also be used for spiritual purposes. In 2013, between 128 and 232 million people used cannabis (2.7% to 4.9% of the global population between the ages of 15 and 65).[28] It is the most commonly used illegal drug both in the world and the United States.[21][28] The countries with the highest use among adults as of 2018 are Zambia, the United States, Canada, and Nigeria.[29] In 2016, 51% of people in the United States had ever used cannabis.[30] About 12% had used it in the past year, and 7.3% had used it in the past month.[31]

Given its name, you might assume THCV shares psychoactive powers with its potent counterpart, THC. In reality, this cannabinoid is more like a cross between CBD and THC. From the former, it takes its modulating powers. Acting like THC “lite,” THCV like CBD can dampen the effects of a strong high. Yet at higher doses, THCV kicks into a psychoactive stimulant in its own right.


Full List of Ingredients Water, Caprylic/Capric Triglyceride, Cetyl Alcohol, Cetearyl Glucoside, Cetearyl Alcohol  Glycerin, Sclerocarya Birrea (Marula) Kernel Oil, Tetradecane, Menthol, Hemp Seed Oil, Argania Spinosa (Argan) Kernel Oil, Carthamus Tinctorious (Safflower) Seed Oil, Xanthan Gum, Cannabidiol (CBD) Rich Hemp Oil, Stearic Acid, Ethylhexylglycerin, Phenoxyethanol, Mentha Piperita (Peppermint) Oil

According to DSM-V criteria, 9% of those who are exposed to cannabis develop cannabis use disorder, compared to 20% for cocaine, 23% for alcohol and 68% for nicotine. Cannabis abuse disorder in the DSM-V involves a combination of DSM-IV criteria for cannabis abuse and dependence, plus the addition of craving, minus the criterion related to legal troubles.[117]


Prior to the Hemp Farming Act of 2018, 41 states had passed industrial hemp-related legislation. 39 of those states legalized statewide hemp cultivation programs that defined hemp specifically to differentiate it from marijuana, establish licensing requirements, and regulate production. The Hemp Farming Act now requires state departments of agriculture to consult with their governors and chief law enforcement officers on a hemp regulatory program, which will then be submitted to the United States Secretary of Agriculture for approval. According to Section 297B of the bill, state hemp regulatory programs must include a system to maintain information on all land on which hemp is cultivated, procedures for testing THC levels in hemp, and procedures for disposing of products that violate THC content restrictions.

Scientists in Europe and North America concluded that hemp seed is an excellent source of nutrition. Numerous anecdotal incidences cited improvements in a wide range of acute and chronic conditions such as rapid healing of skin lesions and relief from flu, inflammation, and allergies. The benefits were attributed to the presence of rich source of the EFAs linoleic and alpha-linolenic acid, and their respective biologic metabolites, GLA and stearidonic acid.9

The question of whether heteromorphic sex chromosomes are indeed present is most conveniently answered if such chromosomes were clearly visible in a karyotype. Cannabis was one of the first plant species to be karyotyped; however, this was in a period when karyotype preparation was primitive by modern standards (see History of Cytogenetics). Heteromorphic sex chromosomes were reported to occur in staminate individuals of dioecious "Kentucky" hemp, but were not found in pistillate individuals of the same variety. Dioecious "Kentucky" hemp was assumed to use an XY mechanism. Heterosomes were not observed in analyzed individuals of monoecious "Kentucky" hemp, nor in an unidentified German cultivar. These varieties were assumed to have sex chromosome composition XX.[32] According to other researchers, no modern karyotype of Cannabis had been published as of 1996.[33] Proponents of the XY system state that Y chromosome is slightly larger than the X, but difficult to differentiate cytologically.[34]


The short answer is–there’s a dosing range that is recommended to start at–it’s best to begin at the low end and base the starting dosage on your dog’s body weight using a mg/kg benchmark. Start with a minimal amount (0.25-0.5 mg / kg) of CBD based on canine body weight, per day. Then, every few days, slowly increase the dose until you’ve achieved the desired effect for whatever is being treated. Once you’ve achieved the desired outcome for your pet (pain-relief, skin allergies, etc.), then you’re probably done making dosage adjustments and you can maintain that level of CBD on a regular daily maintenance schedule. Over time, adjustments can be made, up or down, depending on the continued observed effectiveness.
Years passed, and more studies rolled out with medically beneficial findings regarding cannabis until 2009 when Steep Hill Laboratory in Oakland, California, tested cannabis samples provided by Harborside Health Center to discover that a handful of cultivars contained more CBD than THC. This discovery kicked other labs into gear. They wanted to study medical cannabis to understand and potentially calibrate their cannabinoid ratios. Soon thereafter, laboratories uncovered CBD-dominant strains boasting 20:1 CBD to THC ratios, which opened up the cannabis market for a panoply of CBD products.
Until recent times, the cultivation of hemp primarily as an oilseed was largely unknown, except in Russia. Today, it is difficult to reconstruct the type of plant that was grown there as an oilseed, because such cultivation has essentially been abandoned. Oilseed hemp cultivars in the modern sense were not available until very recently, but some land races certainly were grown specifically for seeds in Russia. Dewey (1914) gave the following information: “The short oil-seed hemp with slender stems, about 30 inches high, bearing compact clusters of seeds and maturing in 60 to 90 days, is of little value for fiber production, but the experimental plants, grown from seed imported from Russia, indicate that it may be valuable as an oil-seed crop to be harvested and threshed in the same manner as oil-seed flax.” Most hemp oilseed in Europe is currently obtained from so-called “dual usage” plants (employed for harvest of both stem fiber and seeds, from the same plants). Of the European dual-usage cultivars, ‘Uniko B’ and ‘Fasamo’ are particularly suited to being grown as oilseeds. Very recently, cultivars have been bred specifically for oilseed production. These include ‘Finola,’ formerly known as ‘Fin-314’ (Fig. 6) and ‘Anka’ (Fig. 7), which are relatively short, little-branched, mature early in north-temperate regions, and are ideal for high-density planting and harvest with conventional equipment. Dewey (1914) noted that a Turkish narcotic type of land race called “Smyrna” was commonly used in the early 20th century in the US to produce birdseed, because (like most narcotic types of Cannabis) it is densely branched, producing many flowers, hence seeds. While oilseed land races in northern Russia would have been short, early-maturing plants in view of the short growing season, in more southern areas oilseed landraces likely had moderate height, and were spaced more widely to allow abundant branching and seed production to develop. Until Canada replaced China in 1998 as a source of imported seeds for the US, most seeds used for various purposes in the US were sterilized and imported from China. Indeed, China remains the largest producer of hempseed. We have grown Chinese hemp land races, and these were short, branched, adapted to a very long growing season (i.e. they come into flower very slowly in response to photoperiodic induction of short days in the fall), and altogether they were rather reminiscent of Dewey’s description of Smyrna. Although similar in appearance to narcotic strains of C. sativa, the Chinese land races we grew were in fact low in intoxicating constituents, and it may well be that what Dewey thought was a narcotic strain was not. Although some forms of C. sativa have quite large seeds, until recently oilseed forms appear to have been mainly selected for a heavy yield of seeds, usually recognizable by abundant branching. Such forms are typically grown at lower densities than hemp grown only for fiber, as this promotes branching, although it should be understood that the genetic propensity for branching has been selected. Percentage or quality of oil in the seeds does not appear to have been important in the past, although selection for these traits is now being conducted. Most significantly, modern selection is occurring with regard to mechanized harvesting, particularly the ability to grow in high density as single-headed stalks with very short branches bearing considerable seed.
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