Zea mays [Frumentum Indicum] (Poaceae)
Indian corn.

“The Indian corn has a temperate, neutral nature and substance; it bends (reacts) to heat and humidity only a little, and is easy to digest. This by itself explains why and how the Indians used it in their medicine: what power it had, and what kind of preparations were made out of it. . . . It contains much transient salt and oil, can help urination or ease the pain in the lumbar region, and temperate the acidity of the body humours” (Weinmann, Phytanthoza)

WEINMANN, JOHANN WILHELM (1683-1741). PHYTANTHOZA ICONOGRAPHIA.
Regensburg: Hieronymus Lenz, 1737-45.
(Washington University, Becker Library)