Question: Are both Promenaea and Machaeranthera from North America?

Related documents: [0]  [DOC] Promenaea is a genus of flowering plants from the orchid family, Orchidaceae. It contains 18 currently accepted species (including one that is apparently extinct), all endemic to Brazil. [END] 
[1]  [DOC] Machaeranthera is a genus of North American flowering plants in the daisy family which are known by the common name tansyaster. [END]  
Answer: no
no