Quercus robur var. tardissima Czern. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Fagaceae genus Quercus species Quercus robur Name Homonyms Quercus robur var. tardissima A.Mathieu & Fliche Quercus robur f. tardissima (Simonk.) Mátyás