Floor 2 - Sierra Brushwood, Brushwood of Heights or Romerillal: it is recorded between 1300 and 1700 m altitude.

Shrubby stratum: main species: romerillo (Heterothalamus alienus), carqueja, romerito and barba de tigre.

Tree species: tabaquillo and orco peppertree on the lowest levels of this area and in some parts of the Sierras Grandes.

Other species: ephedra.

Floor 3 - Grasslands and Dwarf Woods of Heights: they grow over 1700 m altitude. The dwarf woods extend over slopes, summits and elevated plains, descending from the highest elevations until blending with the floor of the romerillal, up to 1000 m altitude. This can be noticed in the area of El Cuadrado in Sierras Chicas, in Olaen, in Altos Pampa or in the Cordones del Pajarillo, Northern Copacabana, Pocho and Guasapama.

The estipa and the festuca, are the typical sierra grasslands. At higher altitudes we find a variety of grasses and extensive turfs that form real pastures.

There are extensive pampas in the Sierras Grandes such as those seen at San Luis, at Achala and at Olaen. The creeks and ravines that cross the highlands of the Sierras Grandes have trees, bushes, ferns and mosses, among whom the tabaquillo and its twisted silhouette and bark that peels in layers of reddish copper colour, stand out.

THE PLAIN

In past times two thirds of the plains in Cordoba were covered with trees that constituted the plain forests.

PAMPAS STEPPE
They occupy the central eastern plains of Argentina and comprise an area of roughly 400000 km2. They cover the south and central eastern part of the Province of Cordoba, and large and monotonous plains crossed by the watercourses of the Calemuchita, Cocancharagua and Carcaraña Rivers represent them.

The Pampas Steppe is characteristic for the total absence of trees and the uniform vegetation made of grasses, and sometimes interrupted by dunes or lagoons.

The herbaceous vegetation of Cordoba's eastern plain sometimes are used by local cattle breeders as forage.

Salinas Grandes Basin
It is on the northeastern limit of the Province and only species adapted to the saltpetre of the soil can grow here. Some tree species endure its limits, such as chañar, brea, crespa, white fern leaf acacia, alpataco and tinticaco; and brushwood with species such as lata, carne gorda, jume, avocado, blue sage, jumecillo, cachiyuyos, mastuerzo, usillo, vinagrillo, rodajillo, broom, jabonillo, cardón, jarilla, penca and quimilo.

Mar Chiquita Basin

It forms the northeastern angle of the Province, and has marshy and sandy grounds that do not sustain dense vegetation, especially north and west of the lagoon, where psamófila vegetation predominate. The typical species are the jumes, salty verdolaga, jumecillo, white jume, cachiyuyo, vinagrillo, mastuerzo, carne gorda and yerba del ciervo. In the zone of influence of the Dulce River: esparto, cinodon, salty grass. The upper zones are the land of tree specimens such as: locust trees, lecherones, vinales, chañares, espinillos, white fern leaf acacia and mistol.

Rivers and lagoons
The misty valleys and ravines offer a perfect habitat for the palma or carandilla palm tree, which grows to form small and dense woods of palm tree clusters known locally as palmares or isolated. Reeds and rushes grow by rivers and wetlands, which are often flooded. Amongst the floating species the water lentils is the most important. There are also numerous cattails or totora reeds and saetas in the lagoons located between the Tercero and Cuarto Rivers. At the same time, there are salty grasses, barba de tigre, cachiyuyo and jume, mainly in the ravines.