Phytochemical and antibacterial study of Lagerstroemia speciosa (L.) Pers. and its ethnomedicinal importance to indigenous communities of Benguet Province, Philippines ανά Laruan, L. M. V., Balangcod, Teodora, Balangcod, Kryssa, Patacsil, Melba, Apostol, Orlando, Manuel, Jayjay, Cortez, Sonny, Vallejo, Vilma