What is this long tall guy?

[lalewicz]

I told one of the ladies in this picture that I would try to find out for her.

[iann]

Looks like a Euphorbia. Horizontal paired spines?

[martenfisher]

http://en.wikipedia.org/wiki/Euphorbia_lactea" onclick="window.open(this.href);return false;

[lalewicz]

Yes thank you I belive that is it.

[jnspire]

Incidentally Euphorbias are succulents not cacti.