Betula fruticosa

Betula fruticosa, commonly known as dwarf bog birch, is a species of dwarf birch that grows in central and eastern Europe (except for Finland where it grows rare) and Siberia and Mongolia on elevation of 600 - 1100 m in forests, streambanks, and swamps.

Description
The species is 3 m tall and have glabrous branches that are either purplish-brown or grayish-black in colour. Petiole is 2 - 10 mm long and is a hairless as the branches. The peduncle is 2 - 5 mm long but can sometimes be even 10 mm. Female species have an oblong inflorescence which is erect as well. The bracts are ciliate, 4 - 7 mm long, and have elliptic nutlets. The flowers bloom from June to July and the fruits ripe from July to August.