As a resident of Tucson, I grow in the Sonoran Desert and my life is almost as exciting as a cactus. Here are a few interesting cacti from Tuesday morning walk in Tanque Verde Wash near, but not in, Ft. Lowell Park, a city park.
Barrel Cactus (Ferocactus, wislizeni possibly)
![Image](http://www.cactiguide.com/forum/userpix/2878_Barrel_Cactus_IMG_1639AT_1.jpg)
A very fruit-laden cholla (Cylindopuntia, fulgida possibly)
The almost tree-size cactus (again, I believe it's Cylindropuntia fulgida) that really caught my fancy. The pile of twigs I believe is a white-wing dove nest, didn't see occupant. Maybe it's still under construction or abandoned.
![Image](http://www.cactiguide.com/forum/userpix/2878_Cholla_Birdhouse_2_IMG_1527T_1_1.jpg)