Botanische tuinen in België
- Arboretum Bokrijk
- Arboretum de Marche
- Arboretum Het Leen
- Arboretum Kalmthout
- Arboretum Robert Lenoir
- Geografisch Arboretum van Tervuren
- Hof ter Saksen
- Kruidtuin Leuven
- Plantentuin Meise
- Plantentuin van de Universiteit Gent
- Plantcol
Instituten en organisaties
- ArbNet
- Belgische Dendrologie Belge
- Botanic Gardens Conservation International (BGCI)
- Global Trees Campaign (GTC)
- International Dendrology Society (IDS)
- International Oak Society
- Magnolia Society International
- Open Tuinen - Jardins Ouverts
- The Maple Society
- The Rhododendron, Camellia & Magnolia Group of the RHS
- Vereniging van Botanische Tuinen en Arboreta (V.B.T.A.)
Databanken
- American Rhododendron Society Database
- Angiosperm Phylogeny Website
- Flora Online (China, North America, Pakistan, Ecuador...)
- Germplasm Resources Information Network
- Gymnosperm Database
- International Association for Plant Taxonomy (IAPT)
- International Plant Names
- List of Names of Woody Plants and Perennials
- Missouri Botanical Garden's VAST (VAScular Tropicos) nomenclatural database and associated authority files
- Monumental trees
- Plantenvinder voor de Lage Landen (Plantago)
- Plants of the World Online (POWO)
- RHS Plant Finder
- Rhododendronforeningen (Danish Chapter of the American Rhododendron Society)
- The Tree Library
- The Tree Register
- Trees and Shrubs Online (TSO)