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Update

12/04/2015

Borzicactus samaipatanus

Names and Synonyms of the genus Borzicactus

03/25/2015

Hamatocactus hamatacanthus

Names and Synonyms of the genus Hamatacanthus

03/24/2015

Grusonia emoryi
Grusonia invicta
Grusonia reflexispina

Names and Synonyms of the genus Grusonia


 
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Welcome

Content

This page is dedicated to the plants of the cactus family, Cactaceae.
With lots of pictures, locale information, authors, synonyms, and generic care tips. My goal is to build a unsable online cactus encyclopedia. Please apologize that this cactus encyclopedia cannot be complete because of the huge number of genera. I use the taxonomy of Curt Backeberg based on the book "Kakteen von A bis Z" by Walther Haage (1981).


Thanks to

My thanks goes to the famous cactus nursery Kakteen-Haage in Erfurt, which allowed me to use plant descriptions from the book "Kakteen von A bis Z" by Walther Haage and images from their plants inventory on this homepage. Furthermore, I would like to thank the Botanical Garden of the University of Heidelberg, which that allowed the use of pictures from the collection of cacti by Werner Rauh. Thanks to all the cactus friends who helped me with their words and pictures. My special thanks to Immanuel Voigt and Edward Bartlett for correcting the English translation.

 

Published

The Tucson Cactus and Succulent Society has recently published the TCSS Field Guide to Cacti & Other Succulents of Arizona.
T
he TCSS Field Guide to Cactus & other Succulents of Arizona is the definitive source for plant identification in habitat. A much needed update of the current taxonomy, distribution and status of native Arizona cactus and succulents. All documentation and photography was provided by TCSS members who have traveled all over the state to capture and document these wonderful plants.
302 pages, 430 color pictures, 130 taxa covered (all the cacti in Arizona), 130 maps, laminated cover, stitched spine. Forward by David Yetman, illustrations by Margaret Pope.

For all Cactus enthusiasts inside of Europe is this book
at Kakteen-Haage now available.
Click here to get a overview for that publication.

 

At one glance

The most beautiful pictures of the season 2012 at one glance in a slideshow now available.
Click to enjoy the slideshow. Have many fun at viewing.

 

 

Worth seeing

Images from collections, botanical gardens, cactus nurseries and national parks.
Clickable picture links, can be found here.

 

Viewed

Have a look at the highly respected Tucson Cactus and Succulent Society and their monthly Newsletter.
Very interesting is the Cactus Rescue Crew. They harvest cacti and other native plants that otherwise would be destroyed during the development of the Arizona real estate. The saved plants are offered at Cactus Rescue Sale, where everybody is welcome!

 

Current

The translation of the English version is not finished yet. Some parts are available in English. The translation goes on.
The work on the Encyclopedia is initially completed but will be continally corrected and updated.
I wish all visitors an informative and pleasant stay and enjoy your visit!

 

 

Care in December

General

Exchange experience with other cacti friends. Read literature and complete records of the plants. Sift, sort and label last year pictures.

Light/Ventilation

Swich on additional lighting, especially for seedlings and plants in dark wintering areas (e.g., basements)
Protect cacti primarily against drafts, e.g. by sealing of door and window cracks.
Control relative humidity by using a hygrometer.
Short air in mild weather is appropriate.

Temperature

Regular monitoring of the external and internal temperature is necessary.
In case of severe frost additional protection of the plants is maybe necessary, e.g. by using additional heaters.

Water/Nutrients

Supply Schlumbergera, Rhipsalis, and other winter grower continuously with water. Fertilisation of Schlumbergera is still possible.

Reproduction

Order seed catalogs, select genus and order the seeds resp. organize seed exchange.

Pest control

Regular review of the collection after pests is necessary (e.g. spider mites, root aphids).

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