Aesculus hippocastanum (Horsechestnut)
- Brief fact sheet with photos of tree, fruit, twig, flower, leaf, and bark.
- http://www.cnr.vt.edu/dendro/dendrology/syllabus/ahippocastanum.htm

Aesculus hippocastanum (Horse Chestnut)
- Image, description, range, habitat, and biology of this species.
- http://www.arkive.org/species/ARK/plants_and_algae/Aesculus_hippocastanum/more_info.html

Aesculus hippocastanum
- Images of branches and flower of this tree.
- http://www.dipbot.unict.it/orto/0015-1.html