Quercus robur
- Photographs of the foliage of this species and help with distinguishing it from other oaks.
- http://www.plant-identification.co.uk/skye/fagaceae/quercus-robur.htm

Quercus robur (English Oak)
- Images of fruit, leaf, bud, and form.
- http://www.treecanada.ca/trees/species_info.php?species_id=223&lang=en

Quercus robur (Pedunculate Oak, English Oak)
- Physical description, range, habitat, biology, threats, and conservation information. Includes a photo.
- http://www.arkive.org/species/ARK/plants_and_algae/Quercus_robur/more_info.html

Quercus robur (Common Oak)
- Distinguishing characteristics and habitat of this species. Provides images of mature tree and acorns.
- http://www.borealforest.org/world/trees/common_oak.htm

Oak, Common - Herb Profile and Information
- Providing botanical, folk-lore and herbal information, from 'A Modern Herbal'.
- http://www.botanical.com/botanical/mgmh/o/oakcom01.html