Which flowering plant is native to Central America, Helictotrichon or Odontonema?
Odontonema Odontonema, the toothedthreads, is a genus of flowering plants in the bear's breeches family, Acanthaceae. It is native to Central America.
Oenothera caespitosa Oenothera caespitosa, known commonly as tufted evening primrose, desert evening primrose, rock-rose evening primrose, or fragrant evening primrose, is a perennial plant of the genus "Oenothera" native to much of western and central North America. It produces a rosette of lobed or toothed leaves each up to 36 centimeters long around a woody caudex.