Cholla is truly nature's concertina wire, a brush against one is an experience one remembers. Yet for the short time they bloom they show off some of nature's prettiest flowers. I imagine we all know a few people that could match the same description,. heh.
Also, quick heads up... I am on Google+ and digging it so far quite a lot. If you want to talk photography or just share please feel free to add me here ( https://plus.google.com/105875140491203787369/posts ) . If you want an invite, pm me here on flickr and I will assist if I can!