The genus Arisaema, a popular group of hardy and semi-hardy aroids in the Araceae family, is comprised of approximately 260 species and 90 subspecies/variations (as of January 1999) and they are primarily found in the Himalayas, China and Japan, although a number of species are found in southern India, South East Asia, north-eastern Africa and North America. Many new species have come from China in recent years providing some confusion with naming.
There are many species easily grown in the open garden while others can be quite challenging to maintain in cultivation because of their dislike of moisture during winter dormancy. They are easily grown from seed. They can sometimes skip a season and then surprise you when you think you have lost them by reappearing. Some of this information furnished by Ernie O'Byrne in his 
introduction to the topic of the week which featured Arisaema August 2003.
Giorgio Pozzi has kindly supplied a list of the fourteen sections that Gussman has used in dividing this genus with the associated species in each section. Information and pictures of species can be found alphabetically by going to the wiki pages below or by clicking on the species in the table.
Arisaema A-C - Arisaema D-G - Arisaema H-N - Arisaema O-S - Arisaema T-Z
For more information about Arisaema consult the archives for Arisaema-l
http://nic.surfnet.nl/archives/arisaema-l.html
This website, www.aroid.org has additional information.
Arisaema A-C - Arisaema D-G - Arisaema H-N - Arisaema O-S - Arisaema T-Z
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