Plants photographed in Nature by Oleg Kosterin
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Betulaceae Betula davurica Pallas E Transbaikalia Betula ermanii Cham. Kamchatka + Betula pendula Roth. Novosibirsk + (=Betula verrucosa Ehrh.) Betula rotundifolia Spach Altai Mts. Duschekia fruticosa (Rupr.) Pouzar Kamchatka in Preslia (= Alnus fruticosa Rupr.; = Alnaster fruticosa)