Question: Which is a species in southern Africa, Clytostoma or Zantedeschia aethiopica?
Sentence (from "Zantedeschia aethiopica"): Zantedeschia aethiopica (known as calla lily and arum lily) is a species in the family Araceae, native to southern Africa in Lesotho, South Africa, and Swaziland.
Relevant evidence: Yes