About 260,000 hectares of the Los Glaciares National Park are covered with ice and have no vegetation. A further 95,0000 hectares are occupied by lakes.

Only about 79,000 hectares are forests, in which lengas and guindos (Magallanic cohiue) are the most common species.   

The Estancia Cristina flora belongs to the Magellan District, the southernmost district in Argentina.
Among the bushes common in the area, it is worth noting the notro (Embothrium coccineum) with its beautiful red flowers, the calafate bush (Berberis Buxifolia) with its yellow flowers and violet berries and the sauco del diablo (Raukaua laetevirens) in the wetter areas.

Anemonas, yellow violets, zapatito de la virgen (Calceolaria uniflora), arvejilla (Lathyrus subandinus) and geum (Geum borisii ) are among the herbs that can be found here. The wetter areas near the lakes, lagoons and rivers home lichens such as barba de viejo (glechonophylla).

This thorny bush --Berberis Buxifolia—typical of the south of Patagonia, has yellow flowers in spring and little red berries in summer. Some delicious jam is made with them.

The bush lent its name to the town and according to the legend, whoever eats this fruit will come back to Patagonia sooner or later.