Which genus has more species, Astilbe or Pittosporum ?
Astilbe Astilbe is a genus of 18 species of rhizomatous flowering plants within the family Saxifragaceae, native to mountain ravines and woodlands in Asia and North America. Some species are known by the common names false goat's beard and false spirea.
Pittosporum tobira Pittosporum tobira is a species of flowering plant in the Pittosporum family known by several common names, including Australian laurel, Japanese pittosporum, mock orange and Japanese cheesewood. It is native to Japan, China, and Korea, but it is used throughout the world as an ornamental plant in landscaping and as cut foliage.