Which flowering plant is native to Central America, Helictotrichon or Odontonema?
Helictotrichon Helictotrichon (alpine oatgrass) is a genus of perennial flowering plants in the grass family.. Genus name comes from the Greek heliktos meaning twisted and trichos meaning spine, referring to the shape of the awn.
Cochliostema Cochliostema is a genus of plants with two species in the family Commelinaceae (the spiderwort and dayflower family). The genus occurs from southern Nicaragua to southern Ecuador.