Eucalyptus
Eucalyptus globulus Labill.
Eucalyptus globulus Labill.
Commonly known as the Australian Blue Gum, some cultures believe that when you burn a eucalyptus leaf, it will have a purifying effect, and all negative energy from that area will disappear. When in fact, all that will disappear are the mosquitoes and other insects. The leaf releases an aromatic odor when crushed that is why it is one of the parts where one can extract essential oils in making perfumes. It is also found to have an insecticidal activity against larvae and pupae of housefly which can be a good alternative to harmful chemical insecticides that is economically viable as a non-toxic product. Aside from these, this tree can also be used as a primary material in building fences as well as in making spices and tea.
In addition, it is one of the preferred Eucalyptus species by Australia’s iconic symbol, the Koala. This marsupial can only survive on eating about one kilogram of leaves in a day. Here in the Philippines, Australian Blue Gum can be mostly found in the provinces within the islands of Mindanao like Agusan, Cotabato, and Zamboanga.
Interestingly, we also have this species inside our campus! Found inside the Bonifacio Circle, these tall pale quiet minstrels stand before the Interfaith Chapel and were said to have been planted by then Vice President for Academic Affairs, Dr. Samuel Salvador together with former PUP President Dr. Dante Guevarra in the early1990s during the administration of Dr. Nemesio Prudente.
Distribution of Eucalyptus globulus Labill. in the Polytechnic University of the Philippines (J. Diongco).
Botanical Description of Eucalyptus globulus Labill.
Eucalyptus globulus is a large tree with grayish blue and smooth bark which is exfoliating in short or long strips. Its specific epithet globulus is a Latin word meaning ‘globe or round shape’ which pertains to its ovate shaped dense foliage. Its leaves are arranged oppositely on branches. Inflorescences are axillary and simple.