This plant is the "Bidens pilosa" known in the English-speaking world as blackjack or beggarticks. They are also called hitchhikers because the flower and fruiting heads often stick to clothing.
In Cordilleran languages, they are called puriket, pulet, enwad, engwad, angvad, puket, etc. The plants are treated as weeds because they often proliferate in farms and fields thus competing for soil nutrients with vegetables/crops.
