Phosphorus abundances as a function of fundamental stellar parameters for all sample stars. Upper panel: phosphorus abundance as a function of Teff . Lower panel: phosphorus abundance as a function of log g. The black line shows the mean value, the shaded area indicates the 1σ standard deviation. The typical uncertainties are indicated in the bottom left corner. Objects farther away than 500 pc are marked with triangles; those closer are marked with dots.