Two species of the Araceae are recorded for the first time in southern Vietnam, namely Amorphophallus paeoniifolius Nicolson in Phuoc Binh National Park (Ninh Thuan province) and A. tonkinensis Engl. & Gehrm. in  Kon Ka Kinh National Park (Gia Lai province). Meanwhile, we have successfully located the distribution of Homalomena pierreana Engl. & K. Krause in Phu Quoc National Park (Kien Giang province).