Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Essential oil of Conyza sumatrensis (Retz) Walk.

Abstract

The essential oil of C. sumatrensis, an endemic species of the Amazon forest, obtained by steam distillation of the leaves (collected from Brazil), was analysed by GC-MS, Kovats indices and 1H- and 13C-NMR spectroscopy. An acetylenic compound, lachnophyllum ester (43.7%), and limonene (22.9%), were the main components of the oil.