Verschoor, J.A. (Jan Adrianus), 1953-; Bornman, L.; Vermeulen, N.M.J.; Bigalke, R.D.
(Published by the Government Printer, Pretoria., 1987)
Certain species of Geigeria contain sesquiterpene lactones which cause vomiting disease in sheep. Dihydrogriesenin (DHG), a sesquiterpene lactone from G. aspera, contains an α-methylene function which can spontaneously ...