The compound is obtained from cinchona bark, coffee beans, the bark of "Eucalyptus globulus". They are visitors to flowers of "Eucalyptus globulus" trees, where they can act as pollinators. Global production is dominated by "Eucalyptus globulus". It can also be found in the bark of "Eucalyptus globulus". Most eucalyptus oil on the market is produced from the leaves of "Eucalyptus globulus". Some red clay soils are planted with "Eucalyptus globulus". The principal species is "Eucalyptus globulus". It generally avoids blue gum ("Eucalyptus globulus") and pine plantations. Closer to the coast "Eucalyptus globulus", "Eucalyptus brookeriana" and "Eucalyptus regnans" are dominant. "Eucalyptus globulus", originate from the Workman Ranch groves. "Eucalyptus globulus" is the principal source of eucalyptus oil worldwide.