Little spiny thing

My wife's grandfather got this plant from a friend and neither one of them know what it is. He gave me one and I told him I would try and fined out what it is called. So anyone who knows what this is would be great. I know it likes sun and his is about 4 years old and about 2 feet high.

 

That looks like an Euphorbia milii. We use them as house plants here.

 

Here you are newgrow:

Crown of Thorns, Christ Plant, Siamese Lucky Plant
Euphorbia milii

http://images.google.com/imgres?imgurl= ... l%26sa%3DG

 

Well thank you very much. I found and read all about it. Thanks again :-D

 

Damn im late - its a Euphorbia milii