Essential oils of petal, leaf and stem of the antimalarial plant Artemisia annua

The chemical composition of the essential oils obtained from petals, leaves and stems of the flowering stage of plants of Artemisia annua cultivar Jwarharti was analyzed by gas chromatography mass spectrometry (GC-MS); 86, 77, and 63 compounds were identified in the leaf, petal, and stem oils, respectively. Large compositional differences were detected between the three oils. The petal and leaf oils were rich in monoterpenes. The stem oil was rich in sesquiterpenes. Camphor, present in the leaf oil, was absent from petal oil