Which genus can be found on the most continents, Hechtia or Zantedeschia?
Hechtia Hechtia is a genus of the botanical family Bromeliaceae, subfamily Pitcairnioideae. Its species are native to Mexico, Central America, and Texas.
Brasenia Brasenia is a genus belonging to the family Cabombaceae, consisting of one species, Brasenia schreberi. It is widely distributed in North America, the West Indies, northern South America (Venezuela, Guyana), eastern Asia (China, Japan, Korea, Primorye), Australia, the Indian Subcontinent, and parts of Africa.