High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Papua New Guinea together with the West Papua Province of Indonesia (New Guinea) make up a major tropical wilderness area that still contains 5% of the original and untouched tropical high-biodiversity terrestrial ecosystems ". PNG in itself contains over 5% of the world's biodiversity in less than 1% of the world's total land area ". The flora of New Guinea is unique because it has two sources of origin" . The Gondwana flora from the south and flora with Asian origin from the west, as a result New Guinea shares major family and genera with Australia and the East Asia, but is rich in local endemic species.