They can be found in the zones of plateaus and plains. Most of them are adapted to minimize the consumption of water because the action of the wind on them increases evaporation and limits the flowering diversity. Consequently small plants start growing beneath this forest.

Plants of hard and small leaves are very frequent to find, Duch as: Notro or Firebush (Embothrium coccineum), Chilco (Fuchsia magellanica), Siete Camisas (Escallonia rubra) and Porcelain Orchid (Chloraea magellanica).

There are also plants which have thorns such as Mata barrosa (Mullinum spinosum), Mata Negra (Junellia tridens) and Calafate (Berberis buxifolia).

Xerophyte Shrub: Its general aspect is of a low shrub although in some representations it may be categorized as arborescent. Its vegetal cover is rich in species and develop series of strategies to face the scarce of water (deep roots, hard leaves, etc.) and the wind (small size or in ballooned shape). (Pisano, 1974).

The domineering specie is Mulinum spinosum (Mata Barrosa), which with different levels of sociability and domineering covers all its area.

Mesophyte Shrub: It consists of small shrubs, average 1,5 m whose density varies from shrubs up to more compact groups.

The floral structure of the upper stratum is varied. The Escalonia Rubra ( Siete Camisas) is one of the most characteristic and others are associated with different levels of dominance such as: Adesmia boronioides (Paramela), Discaria serratifolia (Zarzilla),Berberis empetrifolia (calafate enano) and Gaultheria mucronata (Chaura)(Prickly Health), besides tall shrubs and small trees and pure-low-density copses. (Pisano, 1974).

They are found in wetter soils, extending themselves to the west (in general over the scope note 700 mm) and also to the east in the southern coast of Sarmiento Lake, in the slopes of Sierra del Toro.  This area is presented as a transitional sector between steppe, lenga communities and xerophyte Shrub. (Pisano, 1974).

This region includes all the forests that cover hills, plains and some valleys, where the local conditions rainfalls are over 600 mm yearly.

Lenga (Nothofagus pumilio), Coigüe (Nothofagus betuloide) and in a minor proportion, Ñirre (Nothofagus Antarctica) are found in this area.  All these are beeches.

Notro or Ciruelillo (firebush) (Embothrium coccineum), Calafate (Berberis buxifolia), Zarzaparilla (wild currant) (Ribes magellanicus), Leñadura (Maytenus magellanicus) are also found in this region.  The herbaceous stratum is scarce and is found mostly on shores and clearings.

This covers the eastern part of the Park, where the vegetation consists of pastures mostly. They grow in isolated shrubs with some pieces of turf, being the Coiron (Festuca gracillima) the most predominant.

The rainfalls in this area are over 400 mm yearly and its lands are thinner but with a high content of organic material.

Perennial small herbs are found here, and creeping bushes as well.  There are no trees due to the low availability of humidity and the dryness wind effect.  Bacaris (Baccharis magellanica) Capachito (Lady’s Slipper) (Calceolaria biflora) and Zapatito de la virgen (Calceolaria uniflora).

It is represented by those lands which have vegetation without trees or high bushes.  Orophitic species (of mountain) are grown in crevices, rocks, or fissures which are dispersed because of the given weather conditions.  These are zones where the winds are very strong, and there are high UV levels of radiation and abrupt changes of temperatures.
Species such as Frutilla del diablo (Gunnera magellanica),  Llareta (Azorella monantha) and Ñirre (Nothofagus Antarctica) in a stunted-shape shrub are found over 600 m.s.n.m. and until 800 m.s.n.m. approximately under the line of permanent snow.