Distribution map
Molecular data
Online Plant Databases
Quercus robur on EFLORAS
Quercus robur on Encyclopedia of Life
Quercus robur on ePIC RBG Kew
Quercus robur on GBIF
Quercus robur on IPNI
Quercus robur on The Plant List
Quercus robur in the online Kew Herbarium Catalogue
Quercus robur in the online MNHN Paris Herbarium Catalogue
Quercus robur in the online Naturalis Leiden Herbarium Catalogue
Quercus robur on Tropicos
Quercus robur on Wikispecies
Quercus robur on JSTOR Global Plants
Quercus robur on EUROPEANA Collections
Scanned TYPES
TYPES of Quercus robur on JSTOR Global Plants
TYPES of Quercus robur on Kew Herbarium Catalogue
TYPES of Quercus robur on MNHN Paris
Search for TYPES of Quercus robur in the online Naturalis Leiden Herbarium Catalogue
Images
Quercus robur on Google Image Search
Online libraries
Quercus robur in Biodiversity Heritage Library
Search for Quercus robur on Botanicus.org
Scientific literature (ongoing)