Thomas Robert Soderstrom in July 1986. A collaborator of his was Cleofé E. Calderón (1929–2007), the Argentinian-born agrostologist. He is commemorated in "Soderstromia", "Ilex soderstromii", "Anthurium soderstromii", "Lessingianthus soderstromii", "Vriesea soderstromii", "Ouratea soderstromii", "Cryptochloa soderstromii", "Ocellochloa soderstromii", "Poa soderstromii", "Raddia soderstromii". Thomas Robert Soderstrom Thomas Robert Soderstrom (9 January 1936 Chicago – 1 September 1987) was an American agrostologist His special field of study was the grass family Gramineae or Poaceae. He was Curator of Grasses at the National Museum of Natural History in Washington, DC for some twenty years. In 1957 Soderstrom graduated from the University of Illinois with a BSc in
Organisms at high altitude the tree line. The highest-altitude plant species is a moss that grows at on Mount Everest. "Arenaria bryophylla" is the highest flowering plant in the world, occurring as high as . Organisms at high altitude Organisms can live at high altitude, either on land, in water, or while flying. Decreased oxygen availability and decreased temperature make life at such altitudes challenging, though many species have been successfully adapted via considerable physiological changes. As opposed to short-term acclimatisation (immediate physiological response to changing environment), high-altitude adaptation means irreversible, evolved physiological responses to high-altitude environments, associated with heritable behavioural and genetic changes.