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Eucalyptus dives Schauer - Myrtaceae - broad-leaf peppermint gum, Breitblättriger Pfefferminz-Eucalyptus
Tree, up to 20m high, native to Australia (New South Wales, Victoria), cultiveted elsewhere (South Africa); bark persistent on trunk and larger branches, grey to grey-brown, shortly fibrous (`peppermint'); young leaves ovate, glaucous; adult leaves lanceolate to broad-lanceolate, 7-15cm long.
"Eucalyptus dives Schauer". PlantNET - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, Sydney Australia. Retrieved 2017-11-24
The essential oil of E.dives contains (-)- α-phellandrene in a state of approximate optical purity.
[Smith, Henry George, Peter George Carter, and John Read. „CXII.-Researches on phellandrenes. Part II.“ Journal of the Chemical Society, Transactions 125 (1924): 930-940]
Major components of the essential oils of chemical varieties of Eucalyptus dives („Type“, „Var. A“, „Var. B“, and „Var. C“) of Eucalyptus dives were piperitone, 1.8-cineole, and α-phellandrene.
[Hellyer, R. O., et al. „Chemical variation within Eucalyptus dives.“ Phytochemistry 8.8 (1969): 1513-1514]
 piperitone |  α-phellandrene |  cymene |  terpinen-4-ol |
The essential oil of E.dives leaves was dominanted by compounds like piperitone (40.5%), α-phellandrene (17.4%), p-cymene (8.5%) and terpinen-4-ol (4.7%).
[Gilles, Martin, et al. „Chemical composition and antimicrobial properties of essential oils of three Australian Eucalyptus species.“ Food Chemistry 119.2 (2010): 731-737]
„The term industrial oil is commonly used to describe the use of the EOs as raw materials for
the isolation of their chemical constituents. The industrial EOs are characterized by high levels of
phellandrene and piperitone, and mainly obtained from E. dives species.“
[Barbosa, Luiz Claudio Almeida, Claudinei Andrade Filomeno, and Robson Ricardo Teixeira. „Chemical variability and biological activities of Eucalyptus spp. essential oils.“ Molecules 21.12 (2016): 1671] PDF see also:
„Prospects appear to be poorest for the piperitone-containing oil from E.dives, a so-called industrial oil, of which South Africa is the world's largest supplier.“ [Coppen, J. J. W., and G. A. Hone. „Eucalyptus oils: a review of production and markets (NRI Bulletin 56).“ (1992)] PDF
Eucalyptus dives, Glenmore, Australia (2021) © Susan Kruss CC BY-SA 4.0 inaturalist.org
Eucalyptus dives, broad leaved peppermint, Maiden, J.H., Forest Flora of New South Wales,
vol.2 t.75 (1904-1905) [M.Flockton] botanicalillustrations.org