We have information from several sources:
FactSHEET contributed by: David A. Dierig
Vernonia and Lesquerella Potential for Commercialization—David A. Dierig and Anson E. Thompson
Lesquerella and Vernonia: Oilseeds for Arid Lands—David A. Dierig, Terry A. Coffelt, Francis S. Nakayama, and Anson E. Thompson
Pest Survey of Vernonia galamensis in Ethiopia—Tesfaye Baye and Sileshi Gudeta
Vernonia: Alternative Field Crops Manual, University of Wisconson Cooperative Extension Service, University of Minnesota Extension Service, Center for Alternative Plant & Animal Products
Underexploited Temperate Industrial and Fiber Crops—Richard J. Roseberg
High Value-Added Applications from Vernolic Acid—F. Petrus Cuperus and Johannes T.P. Derksen
New Industrial Crops: Northwestern Argentina Regional Project—Ricardo Ayerza (h) and Wayne Coates
Alternative Crops Research in Virginia—Harbans L. Bhardwaj, Andy Hankins, Tadesse Mebrahtu, Jimmy Mullins, Muddappa Rangappa, Ozzie Abaye, and Gregory E. Welbaum
New Crops Research and Development: A Federal Perspective—L.H. Princen
New Crops in the U.S. National Plant Germplasm System—Henry L. Shands and George A. White
Germplasm Use in Arid Lands Industrial Crops—Dennis T. Ray and David A. Dierig
Applications of Vernonia Oil in Coatings—D.L. Trumbo, J.C. Rudelich, and B.E. Mote
Variability in Oil and Vernolic Acid Contents in the New Vernonia galamensis Collection from East Africa—Ali I. Mohamed, Tadesse Mebrahtu, and Teklu Andebrhan