Description of the population of nearby stars in the area corresponding to the lithium desert. (a) A(Li) distribution vs. T_eff for the 30 stars in a near region of the lithium desert as defined by RA12, and represented by the green square called the Box. Stars without detected planets (N) and stars host of planets (Y) are represented by blue filled circles and red filled squares. (b) Distribution in T_eff of the number of stars in six comparative boxes around the Box for the limits 1.55 < A(Li) < 2.05. The bar with the label ‘Box’ represents the green square of panel a corresponding to the region of the called lithium desert.