Hoya bordenii: Rare species from the Philippines, known for small white flowers.
Hoya clandestina: Rare species in Papua New Guinea's forests, renowned for fragrant blooms.
Hoya dolichosparte: Native to the Philippines; distinct for its large, drooping flowers.
Hoya elliptica: Rare species in Borneo's forests, characterized by dainty flowers.
Hoya erythrina: Found in Borneo's forests; notable for red, tubular flowers
Hoya exilis: Rare species in Borneo; showcases small, delicate flowers.