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The Importance of Cannabis Roots: Medical Potential, History, and Current Uses

Most growers give little thought to the roots of cannabis plants beyond ensuring that they’re healthy and supplied with water, nutrients, oxygen and drainage—before discarding them at harvest time. But the roots have been used in folk medicine for millennia, and contain several compounds that may be of medicinal value.

To get to the roots of it, let’s first investigate how these roots have been used in the past:

Use of cannabis roots as medicine through history

Cannabis roots have a long-documented history of being used for medicinal purposes. The oft-cited Chinese herbal Shennong pên Ts’ao ching, dated to around 2700 BCE, mentions that cannabis root was dried and ground to form the basis of a paste used to reduce pain caused by broken bones or surgery.

It was also crushed to extract the fresh juice, or boiled to make a decoction, and in this manner used in many ways, including:

  • As a diuretic
  • As an anti-haemorrhagic to stop post-partum bleeding in childbirth (as well as other forms of bleeding)
  • To ease difficult childbirth
  • To reduce pain and swelling from bruises and scrapes

The Roman historian Pliny the Elder wrote in his Naturalis Historia in around 79 CE that cannabis root could be boiled in water to make a preparation that relieved joint cramps, gout and acute pain. He also stated that the raw root could be applied directly to burns to reduce pain and blistering, but must be changed frequently to prevent drying-out.

The Roman physician Dioscorides also attested to the use of boiled cannabis root poultices to treat inflammation, gout and ‘twisted sinews’. The Greek medical writer Oribasius wrote that the ‘dry’ root could also be applied to eruptions of the skin such as subcutaneous cysts, when mixed in equal quantities with pigeon droppings—although no other source apparently makes this claim.

The English physician, William Salmon wrote in the early 18th century that hemp root could be mixed with barley flower and applied as a poultice to treat sciatica and hip joint pain. From the late 18th century up to the turn of the 20th century, American physicians would recommend decoctions of hemp root and seeds to treat inflammation, incontinence and venereal disease.

Modern-day use of cannabis roots

Traditional use of cannabis root is known to have persisted up to at least the 1960s in Argentina, where it was used to reduce fever, dysentery, and gastric complaints and to improve overall health and well-being. There’s also a hemp-root tea known as ma cha that is still consumed in Korea, although it’s not exactly clear what its medicinal benefits are supposed to be.

Many modern-day growers, as well as dispensaries and patients in the USA, utilise preparations made from cannabis root to provide subjective relief from a range of ailments. Some home-brew cannabis root ‘tea’, usually by slowly simmering the dried, powdered root (often with cinnamon bark, anise, or other aromatics) in a crock pot for twelve hours or more before straining and drinking.

If it’s put back on to boil after straining, it can also be reduced down to a gummy, tarry extract to form the basis of tinctures or liniments. Others will simmer the root in oil and water, before separating out the residual oil from the water and plant matter and using as the basis for topical medications.

Some even use the root in its dry, powdered form to make dry poultices that can help to soothe and heal burns, cuts and skin complaints such as dermatitis. There’s even one report of dried, powdered root being used to ‘draw out’ the venom from a scorpion sting—this may have some validity, as fresh cannabis juice was apparently used for this purpose in ancient China.

Today, some dispensaries also reportedly stock preparations made from hemp and cannabis root, that can be found in body lotions, salves, lip balms, massage oils and many other products.

Related post

Cannabis in the Netherlands – Laws, Uses and History

Cannabinoids in the roots

There is evidence to suggest that cannabis roots contain some trace quantity of cannabinoids (particularly CBD), and that the concentration depends on the strain, as well as being affected to some extent by environmental factors. Apparently on this basis, there are now various outlets in the USA selling powdered, ‘activated’ cannabis root ostensibly for its high CBD concentrations. However, it appears that the concentration of CBD in cannabis root is very low, and it’s doubtful that it would have any medical efficacy at such levels.

A Canadian study published in 2012 analysed Finola hemp and found that the flowers contained CBDA (the acidic precursor to CBD) at an approximately 2.4% concentration, while the leaves, stems and roots contained 0.5%, 0.04% and 0.004% respectively. The parts also contained the precursor to CBDA, a substance known as hexanoyl-CoA, in concentrations of 15.5%, 4.0%, 2.2% and 1.5% respectively. Studies into high-THC varieties are apparently not available, but it’s likely that the roots would also exhibit much lower concentrations than the flowers and leaves.

Other substances of medical interest in cannabis roots

Although the roots are primarily composed of sugars and lipids, low levels of terpenes, alkaloids and various other compounds have been isolated. In 1971, it was determined that ethanol extract of hemp roots contained the terpenes friedelin, pentacyclic triterpene ketones, and epifriedelanol.

Friedelin is thought to have hepatoprotective (liver-protecting) and antioxidant effects, epifriedelanol has been demonstrated to have antitumour effects, and several pentacyclic triterpene ketones are thought to cause apoptosis in cancer cells, as well as reduce inflammation, pain and bacterial infection and possess diuretic and immunomodulatory properties.

Several alkaloids that may be of medicinal value have been identified in cannabis roots, as well. The alkaloids piperidine and pyrrolidine have both been found in the roots, as well as in the stems, seeds, pollen and leaves. These alkaloids can be highly toxic in high doses, but in smaller doses have been found to have various medical benefits.

Piperidine is used as a chemical ‘building block’ for various pharmaceuticals, particularly those involved in psychiatric medicine such as paroxetine and haloperidol. Pyrrolidine is also used as a building block for a class of stimulant drugs known as racetams.

The roots of cannabis have also been noted to contain choline and atropine in small quantities. Choline is an essential dietary nutrient that is the precursor to the predominant neurotransmitter acetylcholine, and is thought to be crucial to the maintenance of healthy cell membranes.

It’s thought that postmenopausal women are extremely likely to be deficient in choline, meaning that hemp-root tea consumed orally could provide important benefits. Atropine is well-known as a means to dilate the pupil and relax the eye muscles. It also has bronchodilatory properties, and is used to increase heart rate during medical resuscitation.

Cannabis roots and sex determination

It appears that cannabis roots grow differently according to their gender, and that a complex set of genetic interactions determines them both. A study into hemp varieties in Russia seems to clearly demonstrate this. It showed young cannabis plants would develop into male plants 80-90% of the time if they:

  • Were cut off above the root
  • Were processed as cuttings and kept in an aerated nutrient solution
  • Had all new roots cut off as soon as they appeared

However, if roots were allowed to regenerate then 80-90% would develop as females.

The researchers also treated the de-rooted cuttings with 6-benzylaminopurine, a synthetic cytokinin (plant hormones that facilitate cytokinesis, or cell division) that is known to be involved in cell division and differentiation, as well as overall growth and development. Treated cuttings developed in 80% female plants. This strongly suggests that cytokinin production in the roots plays a strong role in sex determination in cannabis.

Making sure your roots are healthy

If cultivating with the intention of using the roots, hydroponic and aeroponic techniques are preferable as they allow for a finer degree of precision when administering nutrients, enable the grower to regularly inspect for progress and signs of ill-health, and ensure that the roots will be clean and free from soil.

Plant breeders have developed specialised systems to maximise root health and growth; the best-known technique involves integrated air-pruning of roots to encourage dense growth within a specified volume.

Air-pruning of roots refers to the natural die-off of roots when exposed to low humidity and air. There are many pots and trays designed with perforated sides available, which helps this to occur naturally.

As the roots die off, the plant continually regenerates new roots, and the root ball itself becomes thick and dense. It’s preferable to air-prune rather than allow roots to hit the sides of pots and then continue to grow around the container, as this leads to twisted, strangulated roots that exhibit reduced nutrient uptake. As well as ensuring the good health of the roots themselves, air-pruning also improves the plant’s overall health and eventual yield.

Keeping roots fed with a mister or dripper system is generally advisable. Some growers will switch the pumps on 2-8 times per day (with increasing frequency as the root mass increases in size), allowing the medium to dry out slightly between feeds.

During the vegetative period, which of course is the period which undergoes the most extensive root growth, the roots should be directly supplied with light vegetative-stage nutrient solution and root boosting solution. Ensure that adequate airflow is provided to the outside of the pots or trays, so the roots will be exposed to the maximum fresh air and will dry out rapidly—it’s also a good idea to direct a fan (or multiple fans!) towards the roots to boost airflow.

Related post

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What to do with cannabis roots, and how to clean them

Now, with plenty of healthy roots to work with, they should be cleaned before using them for anything. Carefully remove the roots from the soil, keeping as much of it intact as possible. This is best done when the soil is still moist, as dry soil will try to cling to the roots even more.

Gently knock the roots on the ground or the side of the pot to try to let most of the soil fall off. Then cut the roots from the plant stalk (leaving a little wiggle room to work with) and remove any leaves.

Using water, rinse the roots well until (hopefully) no soil at all remains (especially if there are plans to consume them in any way). This may take a while. Don’t use hot water. Room temperature water is best, but if needed, lukewarm water can be used too. A soft toothbrush may help.

How to make your own cannabis root balm

At this point, there several things that can be done with the roots, all with their own benefits. With a little effort and perseverance, and some trial and error, it’s even possible to select a variety of strains to be used alone or in combination, to make balms and salves with a range of potency and potential uses.

Typically, the roots of cannabis are dried prior to being processed into balm. Then, the dried root mass is broken up into small chunks, or ground into powder with a pestle and mortar or a blender.

Once the dried root is broken down into a rough powder, it’s added to a slow cooker along with oil and water and gently heated for up to 12 hours, allowing the volatile compounds (including terpenoids and potentially even cannabinoids) to dissolve in the oil. The addition of water prevents the mixture from drying out and the oil from ‘frying’ the roots; the mixture should be checked every hour or so and fresh water added if necessary.

Once the heating stage is complete, the liquid is strained off and the residual root pulp is separated out and either discarded or frozen (to be processed a second time if deemed necessary). The liquid is placed in a freezer, and after some time the water will freeze while the volatile oils rise to the surface and can be scraped cleanly off. At this temperature, the oils will usually have a semi-solid, waxy consistency. At room temperature though, they will be much more liquid, and should have a smooth, translucent appearance.

Once the oil has been separated from the ice, it can be reheated and beeswax can be added to achieve a less runny, more spreadable consistency at room temperature. Trial and error is the best way to establish the desired consistency.

At this time, aromatic essential oils can be added to the mixture to improve fragrance and possibly even enhance medicinal properties.

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Potential risks of using cannabis roots

While cannabis roots no doubt possess various useful and important medicinal properties, it’s important to note that in high doses it can cause hepatotoxicity, due to the presence of the alkaloids pyrrolidine and piperidine. It’s also reported that the alkaloid content can irritate the stomach lining; thus, oral consumption of hemp-root tea is potentially riskier than topical application.

Pyrrolidine and piperidine can also act as irritants of the skin, mucous membranes and lungs. It’s unlikely that the compounds are present in high enough concentrations to present serious risk, but care should be taken to avoid prolonged or heavy use.

Certainly, hemp root extract should not be consumed in its undiluted, extract form. As a tea, light to moderate long-term usage should not present any serious risk, and as a topical, any reaction should present itself rapidly and use can be discontinued with no known long-term ill effects.

Our knowledge of the properties of cannabis root is still in its infancy, and as the industry continues to develop, it is likely that even more uses for them will be discovered.

Yes, cannabis has many potential medical benefits, but don’t forget about the roots! Here’s what you can do with cannabis roots & what they can do for you.

Hemp Technologies Global

Hemp Roots ‘n Health

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Hemp ’n Roots
from under the ground

Hemp roots can be used in various forms, including as a natural topical remedy for bone and muscle aches, swelling and generalized pain. It can also help rejuvenate circulation and promote cell growth, as well as encourage deep tissue healing.

The healing properties of the Hemp root can be found as far back as the writings of Pliny (circa 77-79 CE). The Ancient Greeks wrote about the benefits of the boiled root for muscle aches, broken bones and as a poultice for treating burns. Modern medicine is also rediscovering the amazing properties of Hemp root.

Medicinal use of Hemp Root originated in Central Asia and was cultivated in China as early as 2,800 B.C. The first recordings attributing to the healing powers of Hemp root was by Chinese pharmacopoeia. Around 2,000 B.C., Ancient Egypt gave the world one of its first medical texts, the ”Ebers Papyrus”. It contains some 800 recipes and refers to Hemp root remedies several times. In Medieval Europe physicians prescribed the root to alleviate the agonies of gout and other painful diseases. The root was also made into an oiled salve for burns. Warmed oiled Hemp root paste was massaged into sore muscles and used for arthritis, easing swelling and painful joints. Among the vast array of useful native American plants is Hemp. Listed for its ability to ease pain, reduce swelling and soothe a variety of disorders. Although the Hemp root has no THC, it locks in the healing elements of ” Cannasativine ”, that has proven to be a great anti-inflammatory painkilling agent with deep penetration.

Facts Behind Hemp Root Oil
In 1971, researchers found the roots of the hemp plant contained terpenes, which provide the fragrance for which cannabis is so widely known. Some of these terpenes, such as isoprene [C5H8], have been found to have an expectorant and humectant effect, which makes them viable for bronchial treatments. Friedelin is a terpene specific to the root of the hemp plant, and is just one of the reasons hemp oils are so biochemically diverse, offering relief for many ailments. This particular terpene is analgesic, anti-inflammatory and antipyretic.

There are many uses of the cannabis plant therapeutically. One of the reasons it is so bioavailable is because it is lipophilic , meaning that it can be dissolved into fat-soluble substances and cross the cell membrane. Modern-day research has shown hemp root oil to be beneficial for:

Arthritis, Burns, Dry/chapped skin, Eczema, Headaches or migraines, Insect bites, Muscle soreness, Pain, Psoriasis, Rashes, Rheumatism, Stiff neck, Swelling, Sunburns, Tendonitis.

Hemp Roots have TriTerpenoids that have been used for their Naturally occurring Anti Bacterial, Anti Fungal and Free Radical Scavenger which can all lead to Anti-Inflammation in the body.

Uses include skin care, foods, beverages, medicine, natural health products, sports supplements, tooth paste, to name a few

The healing effects of topical hemp oil treatments go beyond the above ailments. There is now evidence that it may effectively treat certain types of skin cancers. This is due to the previously discussed constituents of Omega 3’s and 6’s, as well as gamma linoleic acid (GLA). In fact, the concentration of GLA in the hemp plant is 5 percent higher than that of any other known source. GLA promotes healthy skin growth and is effective in helping to treat many ailments and diseases, including cancer of the breast and skin.

ALL the information on this page is for informational purposes ONLY and NO medical advice is given or implied. Please consult your qualified health professional before starting or changing any treatment regime you are currently on.

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