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The distribution of cultivations in the world is restricted by the climatic limits, for defect or for excess of vital necessities for the individuals that conform the different biotypes. Since sow is made, plants are subjected to asynchronous variations of component elements of climate and it is the climate the main decisive factor of probability of success of cultivation. The objective of this paper was the delimitation of the Argentinean geographical area where it is possible the economic production of Jatropha curcas, Ricinus communis and Cynara cardúnculus without watering. Since extracted data of the Climatic Statistics published by the National Meteorological Service it was sketched the climatic indexes that define the agroclimatic zone of the specie for the period 1961-1990 for meteorological and agrometeorological stations distributed in the country. Then, all maps corresponding to each one of the climatic indexes were elaborated and the resulting map of the overlapping of all previous ones defined the agroclimatic zone of Jatropha curcas (physic nut, piñón manso, tempate), Ricinus communis (tártago, ricino) and Cynara cardunculus (cardo). [ABSTRACT FROM AUTHOR]