Turcz.: with about 2 species in Brasília. One large clade within this group, containing the genera Froelichia, Guilleminea, Blutaparon, some Gomphrena species, and probably Gossypianthus and Lithophila, has acquired the carbon fixation pathway. Some of these species occur at unusually high altitudes in the Andes, in cooler conditions than their relatives. Photographs References Amaranthaceae Caryophyllales subfamilies