The Arnold Arboretum has an extensive collection of maples (Acer spp.), containing 139 taxa (kinds), including 39 cultivars, from around the world. Because of its diverse and numerous holdings of wild-collected maples, the Arnold Arboretum is designated as one of the Plant Collection Network’s maple collection sites. Our collection is especially rich in rare and unusual Asian maples, including a number of endangered species.
Because of these valuable accessions, the Arboretum’s maple collection was ranked as the most significant in the world for conservation purposes in a report by Botanic Gardens Conservation International.