cultivated in the Botanical Garden of Würzburg to investigate the oil composition of the
flowerheads. The oil was obtained by steam distillation and the headspace method. Gas
chromatography with an MCSS system (moving-capillary-stream-switching) was used to
analyze chiral monoterpenes. The variability of the major components was examined by GC.
The essential oils of five samples were characterized by sesquiterpenes with high …