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