 Which species, Cardwellia or Ochagavia, is native to South America?
Cardwellia:  The species Cardwellia sublimis (northern silky oak) grows naturally only (endemic) in the rainforests of the wet tropics region of north eastern Queensland, Australia. Ochagavia: Ochagavia is a genus of the botanical family Bromeliaceae, subfamily Bromelioideae. Ochagavia:  The genus is named for Sylvestris Ochagavia, Chilean minister of education. Ochagavia:  Endemic to southern and central Chile (including the Juan Fernández Islands), this genus is represented by four accepted species.
Ochagavia