Are Costus and Boenninghausenia plants both found in the Americas?
Boenninghausenia Boenninghausenia is a monotypic plant genus in the family Rutaceae. The sole species is Boenninghausenia albiflora, which occurs in Bhutan, Nepal, Pakistan, Kashmir, India, Indonesia, Philippines, Myanmar, Thailand, Laos, North Vietnam, China and Japan.
Schubertia Schubertia is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1810. It is native to South America.