Constituents of the essential oil of six <i>Helichrysum</i> species from Madagascar

Abstract

Abstract The essential oils of six Helichrysum species from Madagascar were investigated and 46 components were identified by GC, GC–MS and 13 C‐NMR spectrometry. The main constituents were 1,8‐cineole for H. gymnocephalum (59.7%) and H. bracteiferum (27.3%); β‐pinene for H. selaginifolium (38.2%); ( E )‐caryophyllene for H. cordifolium (55.6%), H. faradifani (34.6%) and H. hypnoides (34.0%). Copyright © 2001 John Wiley &amp; Sons, Ltd.