Phytomedicines as a New Crop Opportunity—Loren D. Israelsen
Magness, J.R., G.M. Markle, C.C. Compton. 1971. Food and feed crops of the United States.
Illustration of Zingiber officinale Roscoe Zingiberaceae from Hermann A. Köhler's 3-part tomes Medizinal Pflanzen (1887) plates.
