Apisang ( scientific name : " Pittosporum resiniferum " ), a plant endemic to the Philippines, is grown in the municipalities of Kapangan and Kibungan as a potential alternative source of fuel and energy, rivaling the jatropha biofuel plant.
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""'Pittosporum resiniferum " "', the "'resin cheesewood "'or "'petroleum nut "', is a tree that grows in the Philippines and Malaysia, particularly in the wilderness surrounding the Mayon Volcano and in the Cordillera of the Philippines and Mount Kinabalu of Sabah, Malaysia.