Monkey Tail Cactus

[Chief BigTittyFlapFlaps]

can anyone help me out with the:

a)  actual botanical name of this plant
b)  how to encourage it to flower

i've had it for over three years and it has yet to flower.  this year I'm withholding water all winter to see if that helps.  i'll fertilize it in the spring. 

[Etocionz]

The reason I came to this forum is because I need more knowledge, can you help me?

[Inyan]

Curious question... that begs the question... what knowledge do you seek?