Which genus of plants contains a larger variety of species, Paulownia or Dendromecon?
Dendromecon Dendromecon, the tree poppy, is a genus of one or two species of shrubs to small trees, native to California and northern Baja California.
Decumaria Decumaria, the woodvamps, is a genus of two species of flowering plants in the family Hydrangeaceae, one ("D. barbara") native to the southeastern United States, and the other ("D. sinensis") native to central China.