Are Costus and Boenninghausenia plants both found in the Americas?
Costus Costus is a group of perennial herbaceous plants in the family (Costaceae) described by Linnaeus as a genus in 1753. It was formerly known as "Hellenia" after the Finish botanist Carl Niclas von Hellens. It is widespread through tropical and subtropical regions of Asia, Africa, and the Americas.
Heterosperma pinnatum Heterosperma pinnatum, the wingpetal, is a New World species of plants in the sunflower family. It has a discontinuous distribution in North and South America, having been found in Bolivia, Venezuela, Mexico, Guatemala, Honduras, and the southwestern United States (Arizona, New Mexico, western Texas, southern Colorado), United States (Arizona, New Mexico, Texas, Colorado), Bolivia, Venezuela