Welcome to Opuntia Tiki Wiki portal

The purpose of this site is to compile information about cacti (opuntia in particular) in a collaborative way. Below you can see several Wiki pages containing information about cacti. Please click on links to come further.

A Wiki portal is a place where your knowledge matters. Everyone, even YOU can contribute with information to any topic. If the topic doesn't exist you can create it. Look in the FAQ how to proceed

The goal is to create an encyclopedia with open contents about cacti. Find a species you know something about and start to contribute. If you are not that "bold" you can at least place a comment and someone else will pick it up from there. For your convenience a guest user is created with password guest (but if you want to be remembered better to create your own login).

For any question please send it to Mats Rolfson, Editor

To add a new genus go to edit tab and just write ## ((New Genus)) under appropiate genus.

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Currrent Topics

SubFamily Opuntioideae
Wallace and Dickie made a study of DNA sequence variation in subfamily Opuntioideae in order to establish relationship between different genera.

Stuppy study the seed characters and come more or less to the same conclusion as Wallace.
The classification below is based on these studies

Tribe Opuntieae

1. Opuntia
2. Miqueliopuntia?
3. Brasiliopuntia
4. Consolea
5. Tacinga
6. Tunilla
7. Nopalea

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Tribe Austrocylindropuntieae

1. Austrocylindropuntia
2. Cumulopuntia

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Tribe Pterocacteae

1. Pterocactus

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Tribe Tephrocacteae

1. Tephrocactus
2. Maihueniopsis with subgenus Puna?

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Tribe Cylindropuntieae

1. Cylindropuntia
2. Grusonia?
3. Corynopuntia?
4. Micropuntia?
5. Marenopuntia?
6. Pereskiopsis?
7. Quiabentia?

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