Which genus has more species, Yucca or Dipteryx?
Yucca: Yucca is a genus of perennial shrubs and trees in the family Asparagaceae, subfamily Agavoideae. Yucca:  Its 40-50 species are notable for their rosettes of evergreen, tough, sword-shaped leaves and large terminal panicles of white or whitish flowers. Dipteryx: Dipteryx is a genus containing nine species of shrubs and trees.
Yucca