However, there is no report available in the literature on the description of essential oil for our selected species, namely A. elliotii (Bak.)K. Schum., A. strobilaceum (Sm.) Hepper, A. geocarpum Lock and Hall and A longiscarpum (Hook) K. Shum. Except for the rhizome oil of A. sceptrum (Oliv.et Hamb.) K. Shum collected in south of Côte d’Ivoire and more recently was reported as being rich in â-pinene (12.7%), caryophyllene oxide (10.0%) and cyperene (6.0%) [9].