This one's from the movies so I suppose it doesn't belong here, but Brian Sibley's The Lord of the Rings - The Making of the Movie Trilogy had an illustration of a herb called 'Autumn Crocus' used for treating gout. It was created as a prop for the Houses of Healing scene(gotta love the detail in those films).
You can read the writing and its translation here.
http://www.elvish.org/gwaith/movie_o...scr.htm#herbal