Hemp sativa
Cannabis sativa is an annual herbaceous flowering plant indigenous to eastern Asia but now of cosmopolitan distribution due to widespread cultivation. Each part of the plant is harvested differently, depending on the purpose of its use. The species was first classified by Carl Linnaeus in The flowers of Cannabis sativa are unisexual and plants are most often either male or female. Male plants shed their pollen and die several weeks prior to seed ripening on the female plants. Under typical conditions with a light period of 12 to 14 hours both sexes are produced in equal numbers because of heritable X and Y chromosomes.
Hemp vs Marijuana: Is There a Difference?
Coarse, bushy herb up to 4m tall. Leaves grey-green, up to 12cm long, palmate with lanceolate leaflets, margin serrated.
Individual plants either have male or female flowers dioecious. Flowers small, green and clustered. Fruits small, dry and thin-walled achene , contain only one seed.
Pollinated by wind. For centuries hemp has provided raw materials for paper, textiles, rope for ships, medicine, oil and much more. It is one of the most useful multi-purpose crops of the temperate world quoted as having over 25, end products.
For example, the seed can be used as a food protein and the outer stem provides fibre for ropes and canvas for tents. It is illegal in most countries because the leaves of the high-THC types can be dried and smoked to provide a mild narcotic.
In order to grow hemp at Eden we needed an industrial licence and a physical barrier, so the barrier became the artistic installation: the Hemp Fence designed by George Fairhurst.
It is also a symbolic barrier: visitors are invited to stick their neck out to see what is on the other side.
The hemp at Eden is grown under an industrial licence. Video Hemp growing at Eden. Facts Hemp grows fast, is very adaptable to soil and climatic conditions and is undemanding on resources such as artificial fertilisers and pesticides. It provides a good break crop for the farmer, giving the land a rest from other crops and helping to prevent disease. It produces a substance that became socially controversial in the early part of the 20th century: tetrahydrocannabinol THC , which as well as having many medicinal attributes has been used as a recreational drug.
In recent years breeding and selection has resulted in cultivars low in THC, and hemp is once again being considered by governments as a useful crop. One of the oldest relics of human industry is a bit of hemp fabric dating back to approximately 8, BC.
Hemp is six times as strong as cotton, much more resistant to weathering and wear, and more lustrous and absorbent. It is also much more environmentally friendly to grow.
Hemp growing became commonplace in Britain under the Romans and continued into the mids. He was interested in it for making rope — very important, especially to ships in those days. Palmate : when all lobes originate from a central point lobes are incomplete divisions in the leaves.
Scabrous : rough to the touch.
Cannabis sativa is an annual herbaceous flowering plant indigenous to eastern Asia but now of cosmopolitan distribution due to widespread cultivation. Cannabis is a genus of flowering plants in the Cannabaceae family, which consists of three primary species: Cannabis sativa, Cannabis indica, and Cannabis.
Cannabis sativa L. Show All Show Tabs marijuana. Steve Hurst. Usage Requirements.
Coarse, bushy herb up to 4m tall. Leaves grey-green, up to 12cm long, palmate with lanceolate leaflets, margin serrated.
The taxonomy of Cannabis remains in flux. In his original classification, Carl Linnaeus identified just one species, Cannabis sativa. Others continue with the polytypic view, with two or more additional species such as C.
The Difference Between Indica and Sativa Strains of Hemp.
Log in. Hemp is derived from the Cannabis Sativa plant. Indica is a strain of the Sativa plant. Whether they are separate species has been at the root of much debate according to Wikipedia. Sativa strains of Cannabis have very different effects on the brain which is why we give our customers a choice of which strain is the right one for them. Each of the different plants has their own individual characteristics.
Hemp oil benefits list
Hemp , Cannabis sativa , also called industrial hemp , plant of the family Cannabaceae cultivated for its fibre bast fibre or its edible seeds. Hemp is sometimes confused with the cannabis plants that serve as sources of the drug marijuana and the drug preparation hashish. Although all three products—hemp, marijuana, and hashish—contain tetrahydrocannabinol THC , a compound that produces psychoactive effects in humans, the variety of cannabis cultivated for hemp has only small amounts of THC relative to that grown for the production of marijuana or hashish. The hemp plant is a stout, aromatic, erect annual herb. The slender canelike stalks are hollow except at the tip and base. The leaves are compound with palmate shape, and the flowers are small and greenish yellow. Seed-producing flowers form elongate, spikelike clusters growing on the pistillate, or female, plants. Pollen-producing flowers form many-branched clusters on staminate, or male, plants.
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Hemp oil can refer to a full-spectrum oil from the Cannabis sativa plant or hemp seed oil, which is oil that comes from just the seeds of the hemp plant. There is very little risk of intoxication from hemp oil as all forms of hemp oil come from food-grain strains of hemp. The authors of a study in the journal Cannabis and Cannabinoid Research note that food-grain strains of hemp must contain less than 0.
Cannabis Sativa
We've updated our Privacy Policy to make it clearer how we use your personal data. We use cookies to provide you with a better experience, read our Cookie Policy. Article Sep 02, by Nicole Gleichmann. Over the last couple of years, CBD has hit the mainstream. You hear about from your health-savvy friends, the nightly news, and in magazine ads. This is in stark contrast to marijuana-based products. Unless you reside in a state where recreational or medical marijuana is legal, you are still unable to buy, sell, or possess anything derived from marijuana legally. Even if you live in a state with legal cannabis, you still must go to a licensed dispensary to access it. Why are hemp and marijuana treated in such different ways? With such an obvious distinction between marijuana and hemp, many people mistakenly assume that they are separate species. In fact, hemp and marijuana belong to the same genus and species, Cannabis sativa. Even though hemp and marijuana are both the same species of plant, there are important ways in which they differ. Understanding these can help you navigate the cannabis market. In the United States, marijuana is defined as any Cannabis sativa plant that has greater than 0. THC, short for tetrahydrocannabinol, is the primary psychoactive compound in cannabis.
Its leaves are made up of long, narrow blades. In general, the foliage of a Sativa plant is somewhat sparser than that of the other varieties. This is due to the tropical origin of Sativa strains. In the regions close to the equator, the amount of daylight hours does not change very much throughout the year, so Sativa strains are adapted to accomplish both their growing and flowering in a short, fairly uniform photoperiod the daily number of hours of day light vs. This flower formation is due to the Sativa tendency to grow and flower simultaneously. As a result, female Sativa flowers are usually less dense and weigh less than Indica flowers, despite being equal or larger in size. For this reason pure Sativa strains are rarely used for indoor cultivation or sold as commercial cannabis seeds. All Sativa strains that are viable for indoor growing have been cross-bred with Indica strains in order to reduce their height and flowering time. Even so, Sativa-Indica hybrids generally have a longer flowering period than their Indica relatives. As the tallest variety, it produces the longest fibres and therefore has the widest range of industrial uses.
