Ipomoea (then: ''Exogonium'') Jalapa, a/k/a John the Conqueror root. From "King's American Dispensatory", 1898, a materia medica. {{pd}} http://en.wikipedia.org/wiki/Image:Ipomaea-Jalapa.png
[[Ipomoea]] (then: ''Exogonium'') Jalapa, a/k/a [[John the Conqueror]] root. From "King's American Dispensatory", [[1898]], a materia medica. {{pd}}