Question: Both Arctotis and Cyphomandra are what classification level of plants?
Sentence (from "Arctotis venusta"): It is native to the western coast of South Africa, The species is widely cultivated as an ornamental, and has become naturalized in parts of the United States (California, Arizona, South Carolina), Australia, and Central and South America, where it has escaped from gardens to become a noxious weed.
Relevant evidence: No