Reading further in the book that I was loaned, the conspiracy/vatican one, I find that Mandrake, the plant with the root that looks like a human body and which featured in an 'Arry Potter film, has the latin name of Mandragora Officianalis.
Mandragora being a reference to the Man/Dragon aspect of the root's properties.
Eee-by-gum, isn't this trashy novel stuff enlightening.
Dennypoos.........has pencilled in thursday as an educational day.