Khler's Medizinal-Pflanzen in naturgetreuen Abbildungen mit kurz erluterndem Texte :.Gera-Untermhaus :Fr. Eugen Khler,[1883-1914].biodiversitylibrary.org/page/303312
Native to India, but known as True Cardamon and widely planted for that spice. Naturalized in parts of the Neotropics. Photo from Jatun Sacha gardens, Ecuador.