Which plant has the highest number of species in  Hottonia or Spiraea
Spiraea Spiraea , is a genus of about 80 to 100 species of shrubs in the family Rosaceae. They are native to the temperate Northern Hemisphere, with the greatest diversity in eastern Asia.
Veltheimia bracteata Veltheimia bracteata belongs to the genus "Veltheimia", which contains only one other species, "Velthemia capensis". "Veltheimia bracteata" is commonly referred to as the forest lily, sand onion, or red hot poker. This pendent shaped plant ranges in color from a yellowish pink to red. It is a winter flowering perennial plant, so is in full bloom when other flowers have withered away. Plants grow to be 12 – in height.