Amorphophallus bulbifer?

It looks like amorphophallus, but not clear enough photo to say. I am not expert, but have few. Can you post photo from above?
Here is one of mine, photo from the top. The leaves could have different arrangement.
The stem has splotches...I remember we used to call it "adder plant" (also in Europe, but not Lux).

Rina

Close up of stem & new leaf.

rugby ID-ed it, we were typing at the same time. Rina

yes! I guess it is the same!
Thank you!

Is that the same that has huge stinky flower?

Yes - from what I know - but plant has to be quite mature to flower. The plant itself is just slightly 'stinky'.
You may find much more info on this site if you go to aroid forum. You should search the forum by name your plant has been ID-ed.

Btw, I keep mine outside until temps drop to closer to 0* (cel).
How old is your grandmom's plant?

Rina

This post was edited by rina_ on Sat, Aug 23, 14 at 12:52

That's Amorphophallus konjac. It's now used in a weight-loss product called Lipozene.

It is about 2-3 years old. When we can expect flowering?
She always keep it inside, but not in a room, but in the corridor, so temperature is a bit lower here than inside.
The plant now has two babies, so I took it to my home.

The plant goes dormant in winter and, if it's going to flower, the flower emerges in spring before leaves are present. Many species have ill-smelling flowers. Some growers dig up the tubers and store them in a dry place and then replant them in fresh soil as soon as growth (either bloom or leaf) appears in the center of the bulb.