Aerva

Aerva is a genus of plants in the family Amaranthaceae. Its species are native to the palaeotropics, throughout continental Africa, Madagascar and smaller islands (Rodrigues, Mauritius, Socotra), through parts of the Middle East, India, and southeast Asia. "Aerva javanica" (Burm.f.) Schult. is an alien in northern Australia.
At least four species in the genus have acquired the carbon fixation pathway.
Selected species.
List of species within the genus "sensu" Thiv "et al." (2006) & Hammer "et al." (2017):