![Echinocereus viridiflorus](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2014/12/echinocereus-viridiflorus-2.jpg?resize=800%2C723&ssl=1)
Author: Joseph
![Echinocereus viridiflorus](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2014/12/echinocereus-viridiflorus-2.jpg?resize=800%2C723&ssl=1)
![Cyrnopuntia parishii](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2014/12/grusonia-clavata-DSC00021.jpg?resize=980%2C900&ssl=1)
Corynopuntia, Grusonia, Micropuntia
![Yellow creosote flowers](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2014/12/creosote-2-competion-lance-and-erin.jpg?resize=980%2C683&ssl=1)
Is Creosote Distribution Random?
![Nectary, Alexanderwild.com](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2015/04/nectary-alexanderwild.com_.png?resize=800%2C555&ssl=1)
Extrafloral Nectaries
![](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2016/10/cyl-acanthocarpa-kerry-woodsb.jpg?resize=980%2C691&ssl=1)
Cylindropuntia acanthocarpa
![Opuntia cyclodes spines](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2016/09/opuntia-cyclodes-4b.jpg?resize=799%2C519&ssl=1)
Opuntia cyclodes and Politics
![Yucca schidigera](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2016/09/yucca-schidigera-DSC01195b.jpg?resize=980%2C674&ssl=1)
Yucca schidigera
![Opuntia hybrid 'Tahiti Sunrise', Derrill Pope](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2016/09/ts3.jpg?resize=980%2C601&ssl=1)
Opuntia ‘Tahiti Sunrise’
![Sansevieria downsii, Ton Rul](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2016/09/sansevieria-downsii-ton-rul.jpg?resize=909%2C600&ssl=1)
Sansevieria
![Aeonium haworthii](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2015/04/aeonium-haworthii-manuel-m-ramos.png?resize=877%2C667&ssl=1)
Aeonium, Rosette Plants
![](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2016/08/opunti-microdasys-dmitri_66.jpg?resize=980%2C576&ssl=1)
Opuntia microdasys
![Cylindropuntia abyssi flower](https://i0.wp.com/opuntiads.com/oblog/wp-content/uploads/2016/08/best-cylindro-abyssid.jpg?resize=902%2C500&ssl=1)