It is also known as hemp, although this term is often used to refer only to varieties of Cannabis cultivated for non-drug use. ruderalis), which is commonly described as "auto-flowering" and may be day-neutral. In the 1970s, the taxonomic classification of Cannabis took on added significance in North America. Indica designates shorter, bushier plants adapted to cooler climates and highland environments.
Various compounds, including hashish and hash oil, are extracted from the plant. This classification was based on several factors including interfertility, chromosome uniformity, chemotype, and numerical analysis of phenotypic characters. According to Schultes' and Anderson's descriptions, C.In 1785, noted evolutionary biologist Jean-Baptiste de Lamarck published a description of a second species of Cannabis, which he named Cannabis indica Lam. However, many taxonomists found these putative species difficult to distinguish. In 1929, renowned plant explorer Nikolai Vavilov assigned wild or feral populations of Cannabis in Afghanistan to C. Many countries regulate limits for psychoactive compound (THC) concentrations in products labeled as hemp.Lamarck based his description of the newly named species on plant specimens collected in India. In the early 20th century, the single-species concept was still widely accepted, except in the Soviet Union where Cannabis continued to be the subject of active taxonomic study. Janichevsky concluded that ruderal Cannabis in central Russia is either a variety of C. Cannabis for industrial uses is valuable in tens of thousands of commercial products, especially as fibre ranging from paper, cordage, construction material and textiles in general, to clothing. It also is a useful source of foodstuffs (hemp milk, hemp seed, hemp oil) and biofuels.Industrial hemp products are made from cannabis plants selected to produce an abundance of fiber.To satisfy the UN Narcotics Convention, some cannabis strains have been bred to produce minimal levels of tetrahydrocannabinol (THC), the principal psychoactive constituent.