Abstract
Essential oils obtained from the inflorescences of Achyrocline satureioides (Lam.) DC, Achyrocline alata (HBK) DC and Achyrocline tomentosa Rusby, collected from central Argentina, were analyzed by GC and GC/MS. Fifty-two
compounds representing 93-98% of the oils were identified. Caryophyllene was the most
abundant component in all oils studied (39-48%).