| Summary: | The essential oils of <i>Oricia suaveolens</i> and <i>Guibourtia ehie</i> from Southern Côte d’Ivoire were extracted by hydrodistillation then analyzed by gas chromatography in combination with retention indices [GC(RI)], gas chromatography coupled with mass spectrometry (GC-MS) and nuclear magnetic resonance of carbone-13 (<sup>13</sup>C NMR) And described here for the first time. A total of 42 compounds were identified in the essential oils of the leaves of <i>G. ehie</i> while 55, 40 and 23 components were identified in the leaves, stem bark and root bark oils of <i>O. suaveolens,</i> respectively. Essential oils samples were dominated by sesquiterpenes and (<i>E</i>)<i>-β-</i>caryophyllene was the major compound common to all samples: <i>G. ehie</i> leaf oil contained (<i>E</i>)<i>-β-</i>caryophyllene (26.9–40.8%), α-humulene (syn. <i>α-</i>caryophyllene) (6.7–9.7%), β-elemene (5.5–9.5%) and germacrene D (5.6–8.1%); <i>O. suaveolens</i>, leaf oil contained (<i>E</i>)<i>-β-</i>caryophyllene (33.5–39.3%), (<i>E</i>)<i>-β-</i>farnesene (5.9–9,3%), caryophyllene oxide (2.1–7.7%) and α-humulene (4.0–4.6%); stem bark oil contained α-humulene (38.3–45.8%) and (<i>E</i>)<i>-β-</i>caryophyllene (34.7–41.6%); root bark oil contained α-humulene (36.1–47.9%) and (<i>E</i>)<i>-β-</i>caryophyllene (34.3–43.3%). This study highlighted the abundant presence of (<i>E</i>)<i>-β-</i>caryophyllene, a phytocannabinoïd sesquiterpene with countless biological properties, in two plant species: <i>Guibourtia ehie</i> and <i>Oricia suaveolens</i>.
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