Plants
- 301
- Cactus & Succulent Society of New Zealand
- Links to branches, events, cultivation tips, and message board.
- 302
- Cactus and Succulent Society of America
- Includes local chapter information, events, and cultivation hints.
- 303
- Cactus and Succulent Society of Malta
- Brief information about the society, photos of Maltese cactus gardens, and information about the Derek Garden Centre, housing a large collection of cactus specimens.
- 305
- Cactus and Succulents Society of Israel
- Information regarding the society activities, plants, member's gardens and nurseries in Israel (content in Hebrew and English).
- 306
- Central Arizona Cactus and Succulent Society
- Offers news, event schedule, and culture information.
- 308
- Deutsche Kakteen-Gesellschaft
- German society presents its history and a membership registration form.
- 309
- Florida Council of Bromeliad Societies
- Presents event schedule, book reviews, photographs, classification, and culture information.
- 310
- Henry Shaw Cactus Society
- St. Louis, Missouri group devoted to the study and enjoyment of cacti and succulents. Presents event schedule, photographs, and history of the club.
- 311
- International Euphorbia Society
- Dedicated to plants of the Euphorbiaceae around the world. Site provides cultivation information, a photo gallery, and information about the journal, news, and events.
- 312
- Mexican Cactus Society
- Organization for amateurs and scientists for studying succulent plants, mainly Mexican species, as well as promoting their conservation and propagation. History, meetings, and journals.
- 313
- Orange County Cactus & Succulent Society
- California organization presents its meetings and activities, archive of monthly newsletters, growing tips, and photo gallery.
- 314
- San Diego Cactus and Succulent Society
- Resource for all people interested in Cacti and/or Succulents, especially in the San Diego or Southern California area.
- 316
- The Haworthia Society
- International society for the study, propagation and conservation of haworthias, aloes, gasterias, bulbines and other Southern African succulent plants. Information about the plants, membership, activities, and seed exchange.
- 318
- Tucson Cactus and Succulent Society
- Features plant database, event calendar, newsletter, plant rescues, history and message forum.