Carex magellanica is known as “bog sedge”. It presents a bipolar disjunct distribution, occurring in the cool temperate regions of South America with the subspecies C. magellanica ssp. magellanica and in the boreal temperate regions of North America with the subspecies Carex magellanica ssp. irrigua (www.gobotany.newenglandwild.org). Some colonies have been lost as a result of drainage and afforestation. It is a common species in raised bogs, sloping bogs and flow-through bogs of Patagonia and Tierra del Fuego.