This section is from the book "An Experimental History Of The Materia Medica", by William Lewis.
Cursutae radix Pharm. Edinb. This is a foreign root, which has been ufed by some practitioners at Edinburgh for more than forty years. It is a strong bitter, and has very much the appearance and taste of gentian. Dr. Home, in his list of the materia medica, stiles it Gentiana lutea sylvestris; while he terms the common gentian, Gentiana luteafativa. No botanical author, however, makes this distinction; nor can the name of cursuta be met with in any writer that the editor has consulted. The Edinburgh college received it on Dr. Home's recommendation; but it is little used there, and is not in general kept in the shops*