Question: What continent is the home of both Alternanthera and Platycodon species?
Sentence (from "Platycodon"): Platycodon grandiflorus (from Ancient Greek πλατύς "wide" and κώδων "bell") is a species of herbaceous flowering perennial plant of the family Campanulaceae, and the only member of the genus Platycodon.
Relevant evidence: No