Task: Explanation
Input (English): Ptychosperma is a genus of flowering plant in the Arecaceae family. Most are native to Australia and/or New Guinea, with a few in the Solomon Islands and in Maluku Province of eastern Indonesia. Some have been cultivated abroad as house or garden plants, and reportedly naturalized in certain regions (Caribbean, Polynesia, Fiji, Florida). Question: Ptychosperma and Carissa are both native to where? Answer: Australia
Output (English): Ptychosperma is a genus of flowering plant in the Arecaceae family.