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.
Grusonia pulchella Grusonia pulchella (Engelm.) H.Rob. (sagebrush cholla) is a tuberous species of opuntioid cactus from the Mojave Desert of central Nevada, eastern California, northwestern Arizona and western Utah in the United States. "Grusonia pulchella" has at various times been included in "Opuntia" or placed in a separate genus "Micropuntia".