α-Humulene has been found in many aromatic plants on all continents, often together with its isomer β-caryophyllene. Proven α-humulene emitters into the atmosphere are pine trees,[7] orange orchards,[8] marsh elders,[9] tobacco,[10] and sunflower fields.[11] α-Humulene is contained in the essential oils of aromatic plants such as Salvia officinalis (common sage, culinary sage),[12] Lindera strychnifolia Uyaku or Japanese spicebush, ginseng species,[13] up to 29.9% of the essential oils of Mentha spicata,[14] the ginger family (Zingiberaceae),[15] 10% of the leaf oil of Litsea mushaensis, a Chinese laurel tree,[16] 4% of the leaf extract of Cordia verbenacea, a bush in coastal tropical South America (erva baleeira), but with 25% trans-Caryophyllene[17] and is one of the chemical compounds that contribute to the taste of the spice Persicaria odorata or Vietnamese coriander and the characteristic aroma of Cannabis sativa.