Which genus has more species, Wahlenbergia or Horminum?
Wahlenbergia: Wahlenbergia is a genus of between 150–270 species of flowering plants in the family Campanulaceae, with a cosmopolitan distribution except for North America; the highest species diversity is in Africa and Australasia. Horminum: Horminum is a genus of flowering plants in the family Lamiaceae, comprising a single species, Horminum pyrenaicum.
Wahlenbergia