Euphorbia sp

I would appreciate any help identifying the attached Euphorbia. I keep trying to make it E. triangularis, E. polygona, or E. heptagona. However, those three species have spines, and the attached does not.

 

Euphorbia ampliphylla?

 

what is the size of the plant (height of one of the branches and column diameter would be helpful) ?

 

Will have to get diameter, but as for height, I'm 5' 6" and the Euphorbia is at least as tall plus half my height again.

Re E. ampliphylla - I haven't seen those appendages - have been following about a year.

Thanks for the suggestions, both of you.

 

best guess based on height alone is E. ingens.

 

Well, Susan, thanks again for the help. Just searching pix of E. ingens, they could be the pix I've taken myself. Thanks again.

 

Special handling seems indicated if this page is accurate.

http://www.blueplanetbiomes.org/candelabra_tree.htm