Which genus of monocots native to the hot and arid regions of Mexico, features the genus plant Polianthes?
Polianthes: Polianthes is a genus of plants in family Asparagaceae, subfamily Agavoideae. Polianthes:  Both "Polianthes" and the related genus "Manfreda" are included in "Agave" by some sources. Agave: Agave (US: , UK: , , Anglo-Hispanic: ) is a genus of monocots native to the hot and arid regions of Mexico and the Southwestern United States.
Agave