Which genus has more species, Datura or Castanopsis?
Datura: Datura is a genus of nine species of poisonous vespertine flowering plants belonging to the family Solanaceae. Castanopsis: Castanopsis, commonly called chinquapin or chinkapin, is a genus of evergreen trees belonging to the beech family, Fagaceae. Castanopsis:  The English name chinkapin is shared with other related plants, including the golden chinkapins of the Pacific United States, which are sometimes included within "Castanopsis" but are more often considered a separate but very closely related genus, "Chrysolepis".
i don't know