Question: Which species appears in areas more westernly, Cleistocactus or Rhynchostylis?
Sentence (from "Rhynchostylis"): Rhynchostylis (abbreviated Rhy in the horticultural trade) is a genus in the orchid family (Orchidaceae), closely allied to the genus "Vanda" (from which it differs in the one-lobed lip of the flower) and comprising four currently accepted species native to the Indian Subcontinent, China, Indochina, Malaysia, Indonesia and the Philippines.
Relevant evidence: Yes