The Mapuche communities of Argentina and Chile have a vast knowledge of use
ful plants from temperate forests of Patagonia. However, present processes
of transculturation and uprooting seem to have caused a decline in wild pla
nt gathering. This is a case study of a Mapuche community that now lives ja
r away from the forests that their ancestors inhabited. Nineteen families f
rom the Rams Mapuche community (83% of the total population) were interview
ed using a semi-structured questionnaire, with the aim of finding out which
edible wild species are known and still used, and what factors, according
to the people perception, have caused the decline. People mentioned a total
of 49 edible wild plants including four types of resources: Araucaria arau
cana seeds, the fruits and roots of bushes and herbs, and leaves of edible
weeds. Factors such as the difficulty access to forests which no longer bel
ong to them, drought and soil deterioration from overgrazing were indicated
by people acting negatively on the preservation of the knowledge of plants
in the younger generations.