National Betula Collection
The national collection of Betula (birch).
Location: Bethlehem Wood (native oak and ash), adjacent to Coates Wood
Taxa: 103 Accessions: 825 Wild-sourced: 56%
Geographic strengths: USA, China, Japan, South Korea and Nepal.
Notable specimens: The collection has over 40 IUCN threatened taxa, including the Critically Endangered Betula chichibuensis (young seedlings of this species are currently being grown at Wakehurst Nursery); the Endangered B. megrelica; and B. pubescens var. litwinowii and B. tianschanica, both of which are listed as data deficient