Orocantabro-atlantic and oroiberian perhumid birch forests on siliceous, nutrient-poor substrates of the Northern Iberian Peninsula
Betulion fontqueri-celtibericae Rivas-Mart. et M. Costa in Rivas-Mart. et al. 2002
Betulion fontquerio-celtibericae Rivas-Mart. et M. Costa in Rivas-Mart. et al. 2002
que11 | The currently accepted taxonomic concept of Betula fontqueri is B. pendula var. fontqueri, while Betula celtiberica is included into the variability of Betula pubescens var. pubescens. (L. Mucina).