Which genus contains more species, Pachystachys or Mazus?
Pachystachys Pachystachys is a genus of 12 species of flowering plants in the family Acanthaceae, native to rainforest in the Caribbean and Central and South America. They are evergreen perennials and shrubs bearing prominent terminal spikes of flowers with brightly coloured bracts.
Pachypodium ambongense Pachypodium ambongense belongs to the dogbane family Apocynaceae, which has recently been merged with the milkweed family Asclepiadaceae. It was first published as a species of the genus "Pachypodium" in 1924 by the botanist Henri Louis Poisson.