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Arjona is a genus of flowering plants in the family Schoepfiaceae. They are hemiparasites.
The five or six species are found in southern South America, stretching from Tierra del Fuego in the south, north to Peru in the west, and southeastern Brazil in the east. Assuming A. schumanniana is not a valid species, Argentina has four species, Chile has three, Bolivia, Peru and Uruguay have a single species. Brazil has a single endemic species.
The small tubers of Arjona patagonica were collected by the Selkʼnam people as a food in Patagonia. The tubers of Arjona tuberosa, called macachín, yaukuna or chaquil in various languages, are collected as a food by the inhabitants of the Monte Desert; these are largely non-indigenous Mapuche people, who began to colonise the area in the 17th century. The collectors are generally men (women stay at home now due to the schooling requirements of children) who raise cattle and travel through the desert in search of pasture during the summer season (transhumanism).
Text excerpted from the Wikipedia article Arjona (plant) by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
