They mainly occur on the South Orkney Islands, the South Shetland Islands, and along the western Antarctic Peninsula. A recent warming trend has increased germination, and thus number of seedlings and plants, also extending their range southward to cover larger areas; reports indicate a twenty-fivefold increase in their number.
Deschampsia antarctica has been recorded by the Guinness Book of World Records as the southernmost flowering plant. In 1981, a specimen was found on the Antarctic Peninsula's Refuge Islands at a latitude of 68°21′S.
- "Deschampsia antarctica". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew. Retrieved 9 January 2018.
- Lichens, Antarctic; Significance, Vascular Plants: Their; Rudolph, E. D. (Apr 1965), "American Institute of Biological Sciences", BioScience, American Institute of Biological Sciences, 15 (4): 285–287, doi:10.2307/1293425, JSTOR 1293425
- Young, Mark C. (ed.). Guinness Book of World Records 1997. Guinness Publishing Ltd. p. 42. ISBN 0-9652383-0-X.
- Wali, Mohan K.; Evrendilek, Fatih; Fennessy, M. Siobhan (July 2009). The Environment: Science, Issues, and Solutions. CRC Press. p. 21. ISBN 978-1-4200-0733-6. Retrieved 25 Sep 2016.