My mom bought a small licorice plant which is sitting in a pot in the yard right now. It actually smells like black licorice and has dark purple leaves, it's quite amazing. It's growing very fast too, we're going to have to move it to a bigger pot or to the garden fairly soon because it's going to be too large for its current pot.
As far as I know, there are different types of licorice plants and they don't all look the same or smell the same. I guess we're lucky that we found one that actually smells like licorice. I love the scent of licorice.