This is a plant called "Pueraria montana var. lobata". In local languages, it's called baay or ba-ay or bay-an. It is believed that the municipality of Kabayan in Benguet derived its name from this plant/vine.
A lot of this vine thrive in the town. "Kabayan" means "baay land" or "place where there's a lot of baay".
This plant is native to East Asia, Southeast Asia, and islands in the Pacific.
