The Patagonian steppe corresponds to a steppe covered with large pastures of Festuca, Empetrum and Mulinum, which often provide food for grazing that at one time exceeded 5 million sheep; in fact, the soils of Chilean Patagonia have been degraded by overexploitation for almost 150 years. In this area there is also peatlands which developed in areas once covered by glaciers. This consists of low vegetation dominated by flat cushion-like plants, with an important presence of grasses and mosses. Peatlands are also capable of capturing and retaining large amounts of carbon, another reason why they should be protected. In contrast, the southern islands of Aysén and Magallanes, are covered by a mixture of deciduous and evergreen forest. These forests also occur at high elevation right up to the glaciers and areas with permanent snow cover. Species such as the ñirre (Nothofagus antarctica) and the lenga (Nothofagus pumilio) are found here, as well as Ciprés de las Guaitecas (Pilgerodendron uviferum) and mañío de hojos punzantes (Podocarpus nubigena).
Torres del Paine National Park is a great example of the Patagonian steppe, together with its mountain forests and riverside plant communities all of which support an abundance of wildlife.
Endemic Taxa in Patagonian Steppe and Andean Subpolar Forests
- Abrotanella linearifolia A.Gray
- Abrotanella pupurea Swenson
- Abrotanella submarginata A.Gray
- Adesmia parviflora Clos
- Alopecurus heleochloides Hack.
- Anthoxanthum spicatum (Parodi) Veldkamp
- Apodasmia chilensis (Gay) B.G. Briggs & L.A.S. Johnson
- Asplenium obtusatum G. Forst. var. sphenoides (Kunze) C. Chr. ex Skottsb.
- Asplenium patagonicum R.A. Rodr. & R. Guzmán
- Atriplex chilensis Colla
- Austroblechnum leyboldtianum (Phil.) Gasper & V.A.O.Dittrich
- Baccharis mylodontis F.H.Hellwig
- Carex darwinii var. serranoi (Phil.) Kük.
- Carex toroensis G.A. Wheeler
- Carex transandina G.A. Wheeler
- Conyza gayana Phil.
- Galium araucanum Phil.
- Geum quellyon Sweet
- Hordeum brachyatherum Phil.
- Luzuriaga polyphylla (Hook.) J.F. Macbr.
- Madia chilensis (Nutt.) Reiche
- Nassauvia coronipappa Arroyo & Martic.
- Oxalis arenaria Bertero ex Colla
- Pseudognaphalium gayanum (J.Rémy) Anderb.
- Senecio mesembrynus Cabrera
- Sisyrinchium pearcei Phil.
- Sticherus litoralis (F.Phil.) Nakai
Endemic taxa only occurring in Patagonian Steppe and Andean Subpolar Forests
- Alopecurus heleochloides Hack.
- Anthoxanthum spicatum (Parodi) Veldkamp
- Asplenium obtusatum G. Forst. var. sphenoides (Kunze) C. Chr. ex Skottsb.
- Atriplex chilensis Colla
- Baccharis mylodontis F.H.Hellwig
- Carex toroensis G.A. Wheeler
- Carex transandina G.A. Wheeler
- Conyza gayana Phil.
- Galium araucanum Phil.
- Geum quellyon Sweet
- Hordeum brachyatherum Phil.
- Madia chilensis (Nutt.) Reiche
- Nassauvia coronipappa Arroyo & Martic.
- Pseudognaphalium gayanum (J.Rémy) Anderb.
- Senecio mesembrynus Cabrera
- Sisyrinchium pearcei Phil.