“…[41] Thirty-three essential oil samples from 18 various species are dominated by terpenic hydrocarbon compounds such as phyllocladene, a-pinene and germacrene D. It is the most represented essential oil pattern in the Eryngium genus in terms of species. The 17 species were distributed as: E. billardieri, [37] E. glaciale (two samples), [15] E. pandanifolium (two samples), [44] E. bourgatii (two samples), [14] E. serbicum, [51] E. campestre (Turkish and eight Spanish samples), [39,56] E. yuccifolium (two samples), [12] E. caeruleum, [42] E. thorifolium, [39] E. paludosum, [54] E. vesiculosum, [44] E. aqualifolium (two samples), [36] E. expansum, [44] E. rosulatum, [55] E. amethystinum (three samples), [13] E. planum (steam + leaf sample) [52] and E. caucasicum (one sample). [41] Finally, seven samples of essential oils which comprise five species distributed as E. bungei, [38] E. palmatum, [51] E. rostratum (two samples), [44] E. paniculatum, [53] E. foetidum (Cuban sample) [20] and E. planum (one sample) [52] are dominated by terpene alcohols or oxides, such as spathulenol, carotol or aromadendrene oxide.…”