Desert Gardens, a site with loads of information on desert plants, planning and design of desert gardens, irrigation systems and water conservation, proper mulching, soil preparation, appropriate use of lawn spaces, maintenance, and most importantly, descriptions, planting and growing

Cactus, Succulentes & Méditerranéennes - Photos Murielle Strauss 228 images in this album on 19 pages

The International Asclepiad Society exists to encourage the study and knowledge of the plants of the family Asclepiadaceae (commonly known as ascleps, or in the USA as milkweeds).

Sticky Situation Desert Growers have over 2000 species of cactus and an equal number of other spiny xerophytic plants.

International Euphorbia Society (IES) dedicated to the furtherance of knowledge of plants of the Euphorbiaceae and of their cultivation. At this site you can find information about: Euphorbiaceae, a description and their cultivation, The aims, constitution, officials, and international representatives of the IES

Desert Plant Society of Vancouver Information on monthly meetings, and show and sale. Complete seedlist available online including ordering information.

The Cactus and Succulent Society of Hawaii (CSSH) is an independent affiliate group associated with the Cactus and Succulent Society of America. Like the national organization the CSSH is dedicated to education, environmental protection, and preservation of these fascinating and unique plants, many of which are threatened and endangered.

Central Kansas Cactus & Succulent Study Group

The Cactus and Succulent Society of Massachusetts

Mammillaria pictures, 200 Mammillaria species described, 250 distribution maps , over than 9000 Mammillaria field collection numbers listed, links to buy mammillaria plants, seeds and books, cultivation tips and an active English discussion forum. Mammillarias.net is ranked 3 stars at The cactus and succulent plant mall. So feel free to enter and discover the diversity and the flowers of this beautiful cactus genus mainly growing in Mexico, your greenhouse and garden will love them:

A list of the plants in Gasteria

Gasterias great pictures of Gasterias and other succulents

Cactaceae.Net is a database with 7932 pictures, 254 genera, 246 registered users, and 600 multi-lingual synonyms. Entries emphasize the Cactaceae, but extend to succulent plants in other families, as well.

Agaves
Agavaceae (Agave or Century Plant Family Describes dermatological reactions that can occur upon contact with certain species.
Century Plant Photos of Agave parryi.
Images of the Agavaceae from the Vascular Plant Image Gallery of Texas A&M University.
Plants of the Agavaceae Family Growth and care information, pictures, and common and scientific names.

Austin Cactus & Succulent Society Texas

Welcome to the Homepage of the Ballarat Cactus and Succulent Society This is a society with a warm and friendly atmosphere which meets on the second Friday of each month at the Robert Clark Centre in the Ballarat Botanical Gardens.

Benny's Hardy Cactus Page includes much information about succulent plants in general, with pages on cultivation, cold hardiness, propagation, Opuntia hybrids, photo gallery, diseases, and a special interest in Yuccas.

The Kerr County Cactus & Succulent Society (Texas, USA)

British Cactus and Succulent Society The objectives of the Society are to promote the study, conservation, propagation and cultivation of cacti and other succulent plants.

Tucson Cactus and Succulent Society

Cactus and Succulent Society of America

Cactus & Succulent Society of Maryland

The Cactus & Succulent Society of the Philippines

The Indian Society of Cacti & Succulents

The Desert Plant Society of Vancouver British Columbia, Canada

Los Angeles Cactus & Succulent Society 

Henry Shaw Cactus Society Devoted to the study and enjoyment of cacti and succulents.

Succulents for Beginners Seeks to provide information geared towards hobbyists just beginning to collect cacti and succulents.

Yaxkin Cactus Information about cacti, animated gifs, pics, mexican cacti, all in spanish

Chinle Cactus & Succulent Club In western Colorado

CactiMania Pics and links

Suite101.com: Cacti and Succulents

Kaktus Austria Austrian cactus page.

The Succulent Society of South Africa They work to promote knowledge, the cultivation, and conservation of succulents.

Cactus and Succulent Society of New Zealand Information on the publications, branches, activities and how to join the society.

www.succulents.net: The World of Southern African Succulents Description: comprehensive infos on succulents, online nursery, homepage of the succulent society of South Africa, online bookshop, discussion forum, virtual tours and more...

Brazilian Cacti Project A site that on popularization and conservation of the Cactus family (Cactaceae) that occurs in Brazil.

The Cactus GarageIncludes reference, photos, and tips on how to create a cactus garden.

Absolute Authority on Cactus Comprehensive collection of authorities, news, and community information available on the subject of Cactus.

Cacti and Computer from Dresden, Germany

Brazilian Cacti Project I intend to make this a central place on the Internet that gathers information about the Brazilian species of cacti, and on the environment where these species occur. Here anyone will be able to find information about our native plants.

Justin Spiegel's Desert Cactus Page an internet resource for information concerning cacti and other succulents that thrive in the deserts and semi-deserts of mainly the western hemisphere (North and South America). This page also contains information on the entire cactus family with the inclusion of the order of succulents. This page has a collaboration of information from a wide variety of reliable peices of literature relating to cacti and succulents. We also host several webpages of cactus and succulent organizations worldwide.

Hardy Cacti & Other Succulents in Denmark

Cacti of the El Paso, Texas Region

Ralph Martin's Cacti and Succulents Page

The Sedum Society

Succulent Tissue Culture

GardenWebs Cactus and Succulent Forum

Illustrated Manual of the Rare Cacti of the United States and Puerto Rico by Frank W.Reichenbacher.

Achim Hecktheuer's homepage Includes Cole's Lithops Collection Numbers, Cactus Genera Synonym List and numerous photographs.

The Amateurs' Digest is unique in our hobby. Publishing since 1989, it is written by and for collectors of cacti, succulents and caudiciforms world wide. We share with each other a wealth of information in every issue including many photos of plants we grow. The information we have shared on caudiciforms alone, and now available in separate Caudex booklets, is invaluable to those seeking more information on that specialized subject.

Cactus in Chile from Clarke Brunt

Cactusfriends of Karlsruhe Germany

Kakteen und andere Sukkulenten Germany

The Organ Pipe Cactus National Monument

Mammillaria Socity You can join the Society and receive there Journal.

Serra Gardens Landscape Cacti and Succulents, California,

The'Too Cold for Cactus Group' We are a sub list of cacti_etc and discuss growing cactus and other succulents outdoors where it is cold and wet. We have about 120+ subscribers to our free daily e-mail digest.since we went on the web in September of this year. The group started last winter with 5 of us silly fools trying to grow cactus in the frozen tundra of Wisconsin and Minnesota.

Le Cactus Francophone Voici quelques informations sur tout ce qui touche aux cactus et aux plantes succulentes, en France, en Belgique et en Suisse. Je n'ai malheureusement aucune info sur ce qui se passe au Canada francophone.

The Cactus & Co. International Society

The University of Connecticut EEB Greenhouse Collection of the family of Asclepiadaceae.