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Family: Betulaceae
[Betula aetnensis Raf. ex J.Presl & C.Presl, moreBetula alba var. fastigiata Clemenc., Betula obscura Kotula ex Fiek, Betula pendula f. tristis C.K.Schneid., Betula pendula f. youngii C.K.Schneid., Betula pendula var. dalecarlica (L.f.) L.H.Bailey, Betula pendula var. fontqueri (Rothm.) G.Moreno & Peinado, Betula pendula var. gracilis Rehder, Betula pendula var. obscura (Kotula ex Fiek) Olšavská, Betula pendula var. oycowiensis (Besser) C.K.Schneid., Betula pendula var. parvibracteata (Peinado, G.Moreno & A.Velasco) G.Moreno & Peinado] |
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