![Oreocereus celsianus, Sebastian Santecchia](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2017/06/orocereus-celsianus-sebastian-santecchia4.jpg?resize=980%2C768&ssl=1)
Category: Other Topics
Cacti and succulents are a large and varied group of plants. Fungi, seed germination, birds, pollination, and cacti that are used for food are described here.
![Oreocereus celsianus, Sebastian Santecchia](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2017/06/orocereus-celsianus-sebastian-santecchia4.jpg?resize=980%2C768&ssl=1)
![Rhipsalis juengeri with Fruit](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2017/06/rhipsalis-juengeri.jpg?resize=980%2C797&ssl=1)
Bats Distribute Seeds of a Cactus?
![Baja California, Alan Harper](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2017/06/baja-california-alan-harper.jpg?resize=980%2C823&ssl=1)
Bacteria Help Cacti Grow on Rocks?
![Opuntia macrocentra, Matt Baker](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2015/10/opuntia-macrocentra-matt-baker.jpg?resize=980%2C800&ssl=1)
Floral Biology of Opuntia macrocentra
![](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2016/08/MG_3906.CR2-Along-Rio-de-las-Conchas.jpg?resize=980%2C511&ssl=1)
Along the Conchas River of Argentina
![Ferocactus gracilis coloratus](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2016/07/ferocactus-gracilis-coloratus-christian-defferard.jpg?resize=980%2C542&ssl=1)
Baja California
![Namaqualand flowers, Malcolm Manners](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2015/11/namaqualand-Malcolm-Manners.jpg?resize=980%2C823&ssl=1)
Namaqualand Desert
![Cactobalstis cactorum egg case, John Tann](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2015/10/cactoblastis-egg-case-john-tann.jpg?resize=980%2C569&ssl=1)
Indestructible Cacti?
![Cactus seedlings, sacredcactus.com](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2015/10/cactus-seedlings.jpg?resize=798%2C688&ssl=1)
Seed Vendors
![Britton and Rose, plate XVII](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2015/10/plate-xviib.jpg?resize=821%2C622&ssl=1)
Mary Emily Eaton Illustrations
![Aloe with monkey](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2015/09/aloe-monkey.jpg?resize=683%2C980&ssl=1)
PlantIllustrations Org
![DNA](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2015/05/dna-helix.jpg?resize=598%2C318&ssl=1)