Five previously undescribed phenylpyridones, designated as citridones H-L (1-5), along with seven known compounds, were characterized from the rice medium culture of the Cineraria repanda-derived endophytic fungus Penicillium oxalicum. Their structures were elucidated through detailed interpretation of UV, NMR, and HR-ESI-MS data. The absolute configurations of C-2 and C-3 in compounds 1-4 were determined by spectroscopic analysis and ECD calculations, while the C-5' configurations were established through computational