Thanks guys for your thoughts and opinions so far. I went back to the motherplant today and could only get a couple of pics before the heavens opened up. Hope they help.But I did get some more cuttings.
The man that owns the cactus told me that it was over thirty years old and his mother had planted it. I only mentioned it in case it helps with the ID..
Hey guys I was recently got some cuttings off a 30+yrs cactus that was about 4m high. Hoping you can ID it for me. The older branches have 8 ribs.Sorry about the poor quality pics.