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. "Wahlenbergia" species have dispersed widely, even to oceanic islands, and there are four species known from the island of Saint Helena, including the now extinct species "W. roxburghii". The genus was named after Göran Wahlenberg (a Swedish botanist who taught at Uppsala University) by German botanist H. A. Schrader (Heinrich Schrader), in 1814.
Helichrysum pumilio Helichrysum pumilio is a species of flowering plant in the Asteraceae family, known colloquially as the wolbossie. It is found in southern Africa. An aromatic, it is used by birds such as the Cape sparrow in their nests, possibly as protection against parasites.