1. (birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark)
brzoza nadrzeczna, brzoza czarna
synonim: river birch
synonim: red birch
synonim: Betula nigra

2. (common birch of the eastern United States having spicy brown bark yielding a volatile oil and hard dark wood used for furniture)
brzoza cukrowa, brzoza wiśniowa: : synonim: sweet birch
synonim: cherry birch
synonim: Betula lenta