Article from New Trees, Ross Bayton & John Grimshaw
See discussion with Betula delavayi (p. 168).
B. borealis Spach K222
B. borggreveana Zabel K223
B. ×caerulea Blanch. S111, K223
B. callosa Notoe K223
B. celtiberica Rothmaler & Vasconcellos S120
Recommended citation
'Betula bomiensis' from the website Trees and Shrubs Online (treesandshrubsonline.
See discussion with Betula delavayi (p. 168).