Which genus has more species, the Catharanthus or the Bosea?
Catharanthus Catharanthus is a genus of flowering plants in the dogbane family, Apocynaceae. Like genus "Vinca", they are known commonly as periwinkles. There are eight known species. Seven are endemic to Madagascar, though one, "C. roseus", is widely naturalized around the world. The eighth species, "C. pusillus", is native to India and Sri Lanka. The name "Catharanthus" comes from the Greek for "pure flower".
Paepalanthus Paepalanthus is a genus of plants in the family Eriocaulaceae. It has about 300-400 species, native mostly to tropical Africa and Latin America, with a few species in Japan and Madagascar.