The Arboretum is divided into three geographical parts (see maps), America (AAM), Asia (AAZ) and Europe (AEU), with trees, shrubs and ground cover composed of ca. 620 species from the respective regions.
Important or noteworthy trees or shrubs, all of known wild origin :
Betula schmidtii
Carpinus fangiana
Celtis julianae
Cotoneaster magnificus
Crataegus turkestanica
Fraxinus pallisiae
Helwingia himalaica
Helwingia omeiensis
Hydrangea sargentiana
Hydrangea seemannii
Malus sylvestris
Meliosma yunnanensis
Perrottetia racemosa
Prunus salicifolia
Styrax officinalis
Ulmus crassifolia
