In Patagonia, it is the name of a woody tree, from the family Fagaceae (according to new classifications Nothofagaceae, false beech). They are also known as Tierra del Fuego oaks, southern beech, southern beech, white oaks.
lenga-refers to the expression : phagace tree whose leaves, in autumn, change from green to red and then to yellow; its wood is used in carpentry and furniture