Foreninger, bøger, fora

Biodiversity Heritage Library

NHBS Specialboghandel

Timber Press

Foreninger

Deutsche Dendrologische Gesellschaft e.V.

Schweizerische Dendrologische Gesellschaft

Belgische Dendrologie

The Royal Horticultural Society

Foreninger

Fonden for træer og miljø

Det Danske Haveselskab

American Conifer society

British Conifer Society

The International Palm Society

Maryland Native Plant Society

Eastern Native Tree Society

UBC Botanical Garden Forum

Fora- og boglinks

Scott's Botanical Links

The Swiss Dendrological Library (BSD)