Lithocarpus is a genus in the beech family Fagaceae, differing from Quercus in the erect male spikes. The World Checklist (see link below) accepts 334 species, though some other texts suggest as few as 100 species. About 100 Asian species of the genus were formerly treated in the genus Pasania. All are native to east and southeast Asia. These Asian species do not have a well-known English vernacular name, though the generic term stone oak has been proposed.