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