Plants that have adjusted to the arid and semi-arid regions of the world are known as cacti and succulents. Cacti are defined as members of one plant family and are considered separately, although they are actually succulents. The term Succulent encompasses all other fleshy plants, which stem from a variety of plant families. Both succulents and cacti have developed means of survival that assure their growth in these regions. Their leaves have become smaller and their stems larger in order to store more water; in some, the leaves have disappeared leaving only thickened green stems. In plants where the leaves have not disappeared, the leaves may have become thickened or insulated with coverings of hair, wax or scales.- Category ID : 82949
Dedicated to houseleeks in the genus sempervivum and its subgenus jovibarba, with lists of species and cultivars, photos, bibliography, and information about distribution. Multilingual site.
Offers general information, care and propagation tips, and specialized pages on asclepiads, haworthias, peperomias, and sempervivums. Also information on current events and links to societies.
Shopping site run by enthusiasts. Includes large photo gallery, featuring regular and oddly grafted cacti, a glossary of cactus terms, and an etymological reference.
Professor at Cardiff University presents information about his cactus hobby, with trade lists, photos, links to societies and other web resources, and a field number data service.
Information on plants in the Rhipsalis, Lepismium, Hatiora and Schlumbergera genera, including species lists with photos, cultivation and propagation details, and links to vendors and collections.
Presents care and propagation information, a dictionary, and photo galleries of succulents, including cacti, as well as photo-reports of events and exhibitions.
Information on several cacti in the genus Lophophora: history, uses, distribution, descriptions, and propagation. Also offers seeds and plants for sale.
Personal site of a German hobby cactus grower: how she grows cacti and other succulents in her apartment, as well as photos and information arranged by genus.
Information about culture and species of this succulent family, formerly known as mesembryanthemaceae. Includes photos, botanical classification, and links to other resources.