World Library  
Flag as Inappropriate
Email this Article

Cannabis ruderalis

Article Id: WHEBN0002154347
Reproduction Date:

Title: Cannabis ruderalis  
Author: World Heritage Encyclopedia
Language: English
Subject: Cannabis, Autoflowering cannabis, Cannabis strains, Cannabis cultivation, Cannabis foods
Publisher: World Heritage Encyclopedia

Cannabis ruderalis

Cannabis ruderalis
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Cannabaceae
Genus: Cannabis
Species: C. ruderalis
Binomial name
Cannabis ruderalis

Cannabis ruderalis is a species of Cannabis originating in central Russia. It flowers earlier than C. indica or C. sativa, does not grow as tall, and can withstand much harsher climates than either of them. Cannabis ruderalis will produce flowers based on its age, rather than light cycle (photoperiod) changes which govern flowering in C. sativa and C. indica varieties.[1] This kind of flowering is also known as "autoflowering".[2]


The term ruderalis is derived from the Latin rūdera, which is the plural form of rūdus, a Latin word meaning rubble,[3] lump, or rough piece of bronze.[4] A ruderal species refers to any plant that is the first to colonise land after a disturbance removing competition.

Origin and range

Cannabis sativa, C. indica, and C. ruderalis are all species of the genus Cannabis. They can all inter-breed freely, and many 'pedigree' cultivars are indica/sativa hybrids. Authorities disagree about the number of species of plant which constitute the genus Cannabis. Although many authorities continue to class all varieties of the plant, including hemp and marijuana, as Cannabis sativa, it is widely accepted that there are three separate species or sub-species. C. sativa, the most widely cultivated in the Western World, was originally grown on an industrial scale for fiber, oil, and animal feedstuffs. It is characterised by tall growth with few, widely spaced, branches. C. indica, originating in south Asia, is also known historically as Indian hemp, and is characterised by shorter bushy plants giving a much greater yield per unit height. C. ruderalis is a hardier variety grown in the northern Himalayas and southern states of the former Soviet Union, characterised by a more sparse, "weedy" growth. It is rarely cultivated for its THC content.

Similar C. ruderalis populations can be found in most of the areas where hemp cultivation was once prevalent. The most notable region in North America is the midwestern United States, though populations occur sporadically throughout the United States and Canada. Large wild C. ruderalis populations are also found in central and eastern Europe, most of them in Lithuania, Belarus, Latvia, Estonia and adjacent countries. Without human selection, these plants have lost many of the traits they were originally selected for, and have acclimated to their environment.

Breeding potential

Cannabis ruderalis has a lower THC content than either C. sativa or C. indica, so it is rarely grown for recreational use and the shorter stature of C. ruderalis limits its application for hemp production. Many first time cannabis producers grow autoflowering varieties due to the relatively short time required for the plants to grow sufficiently to be harvested. Cannabis ruderalis strains are high in the cannabіnoid cannabidiol, so they are grown by some medical marijuana users.

However, C. ruderalis' early, plant-age triggered "autoflowering" characteristic (which offers some agricultural advantages over the day-length flowering varieties) as well as its reputed resistance to insect and disease pressures makes it attractive to plant breeders C. indica strains are frequently cross-bred with C. ruderalis to produce autoflowering plants with high THC content, improved hardiness and reduced height.[5]


  1. ^ Rosenthal, Ed. "Flowering Ruderalis". Cannabis Culture Magazine. Retrieved 16 February 2012. 
  2. ^ Greg Green. 2005. The Cannabis Breeder’s Bible. Green Candy Press 14
  3. ^ "Definition for ruderal". 
  4. ^ "Latin etymology of ruderalis". 
  5. ^ DMT. "The Return of Ruderalis". Cannabis Culture Magazine. Retrieved 16 February 2012. 

External links

  • Media related to at Wikimedia Commons
  • Data related to Cannabis ruderalis at Wikispecies
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.