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Clerodendrum thomsoniae
According to Wikipedia, a more suitable common name is "bleeding glory-bower" because it is unambiguous, however I am more familiar with the common name used above :-). The flower is native to tropical West Africa.
Growing as an ornamental in a semi-urban garden in an under-developed part of Biak Town (on the edge of Kompleks PPG YPK Petrus Kafiar), Biak Island. This is in the equatorial tropics.