Long white flower heads bell like

This is the only way i can describe these flowers thank you poppy :-?

 

Some kind of iochroma???
is it a plant, bush, tree...etc.
what do leaves look like.

 

Theres a leaf in the photo :?:

 

hi, the flowers certainly look like nicotiana.

 

Yes, my first thought was Nicotiana as well.

 

Yes thank you ive confirmed it is
Nicotiana sylvestris (Tobacco plant)