Potatoes, which are starchy crops from the perennial nightshade Solanum tuberosum, are my favorite comfort food! I like them cooked any style!
Nice, So what's the botanical name called?
I am not sure of the botanical name. I do know that potatoes are a staple all around the world and a major part of the food supply in the world. Do you enjoy potatoes?
Where are they mainly grown?
It is grown around the world and is the world's fourth largest crop only behind rice, wheat and maize. 
Good to know that!  Do they come in different species and colors?
After millennia of breeding, there are over a thousand different types of potatoes! 
What do you mean by millennia of breeding?