Quercus porphyrogenitaQuercus porphyrogenita is a species of oak in the family Fagaceae, native to northeastern Mexico.TaxonomyQuercus porphyrogenita was first described by William Trelease in 1924. It may be treated as a synonym of Quercus laceyi, but as of 2023, is accepted by Plants of the World Online. Under the synonym Q. laceyi, it is placed in Quercus section Quercus.DistributionQuercus porphyrogenita is native to northeastern Mexico – the states of Nuevo León and Tamaulipas.