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