Which appears on more continents, Utricularia species or Witch-hazel species?
Utricularia: Utricularia, commonly and collectively called the bladderworts, is a genus of carnivorous plants consisting of approximately 233 species (precise counts differ based on classification opinions; one recent publication lists 215 species). Utricularia:  "Utricularia" are cultivated for their flowers, which are often compared with those of snapdragons and orchids, especially amongst carnivorous plant enthusiasts.
i don't know