Which genus is found predominantly in the Southern Hemisphere, Acaena or Sparganium?
Acaena Acaena is a genus of about 100 species of mainly evergreen, creeping herbaceous perennial plants and subshrubs in the family Rosaceae, native mainly to the Southern Hemisphere, notably New Zealand, Australia and South America, but with a few species extending into the Northern Hemisphere, north to Hawaii ("A. exigua") and California ("A. pinnatifida").
Tasmannia Tasmannia is a genus of woody, evergreen flowering plants of the family Winteraceae. The 40 species of "Tasmannia" are native to Australia, New Guinea, Sulawesi, Borneo, and the Philippines. The Winteraceae are magnoliids, and are associated with the humid Antarctic flora of the Southern Hemisphere. The members of the family generally have aromatic bark and leaves, and some are used to extract essential oils. The peppery-flavored fruits and leaves (especially dried) of this genus are increasingly used as a condiment in Australia. The peppery flavour can be attributed to polygodial.