Most certain plant ID's?

[Aga Tentakulus]

"Look at the funny violets. Okay, look. Now what?"

Now one is looking for the accompanying text of exactly this plant in various medical books. Now examine this text among themselves and look for similarities.
The more often a match appears, the higher the possibility that it occurs in the VM text.
With this, I may not be able to solve the riddle of the VM, but it gives the possibility to better understand the text and how it is structured. Maybe there is a feature that only this plant has and a word that only occurs once in the VM and that is right there.
Such hits would be wonderful.