Oral May Not Exist!

National Junior College, Singapore. Examples of plant resins include amber, Balm of Gilead, balsam, Canada balsam, copal from timber of Protium copal and Hymenaea courbaril, dammar gum from bushes of the household Dipterocarpaceae, dragon’s blood from the dragon trees (Dracaena species), elemi, frankincense from Boswellia sacra, galbanum from Ferula gummosa, gum guaiacum from the lignum…

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