This oil is steam distilled locally from partly dried leaves and twigs of Cinnamomum Zeylanicum, the same tree which yields the Ceylon cinnamon bark (see previous monograph). The tree grows wild, and is cultivated in Ceylon, South India, Indonesia, Indochina and in the Seychelles, a tiny island group midway between Zanzibar (east Africa) and Ceylon.
Cinnamon Leaf Oil is a yellow to brownish- yellow oil of warm-spicy, but rather harsh odor, lacking the rich body of the bark oil. It has some resemblance to the odor of clove leaf oil and clove stem oil. The flavor is somewhat bitter, slightly pungent, irritant-burning, but very spicy and powerful.
Arctander, Steffen . Perfume and Flavor Materials of Natural Origin (pp. 197-198)