Gramins, in the upper Calchaquí valley, province of Salta, Argentina

Gramins, in the upper Calchaquí valley, province of Salta, Argentina

"Rica rica" (Acantholippia punensis) bush, on the Andean Altiplano, Argentina

Grass shaped by the intense wind of the Andean Altiplano, Argentina

A 'yareta' (Azorella compacta), typical plant of the Andean Altiplano, Argentina

A 'yareta' (Azorella compacta) in the Altiplano, province of Salta, Argentina

A 'yareta' (Azorella compacta) in the Altiplano, province of Salta, Argentina

A 'yareta' (Azorella compacta) in the Altiplano, province of Salta, Argentina

A 'yareta' (Azorella compacta), typical plant of the Andean Altiplano, Argentina

Cactus, Trichocereus genus, Andean Altiplano (high plateau), Andes Cordillera, Argentina

Cacti of the Trichocereus genus, Argentina, the Andes Cordillera

Cacti of the Trichocereus genus, Tilcara, Jujuy, Argentina, the Andes Cordillera

Trichocereus genus cactus, on the Andean Altiplano (high plateau), the Andes Cordillera

Cactus, Trichocereus genus, Andean Altiplano (high plateau), Andes Cordillera, Argentina

Cactus, Trichocereus genus, Andean Altiplano (high plateau), Andes Cordillera, Argentina

Cacti of the Trichocereus genus, Argentina, Andean Altiplano (Puna, high plateau), the Andes Cordillera