jalap References jalap plant Ask Anything Homework Help Also known as: Ipomoea purga Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Ipomoea/ Major speciesJalap (I. purga), native to tropical Mexico, is an upright herb with solitary reddish flowers. Its apple-sized turnip-shaped roots are the source of an ancient purgative, still in use. Read MoreJalap (I. purga), native to tropical Mexico, is an upright herb with solitary reddish flowers. Its apple-sized turnip-shaped roots are the source of an ancient purgative, still in use. Read More