red birch
/ˌrɛd ˈbəːtʃ/noun
1 US. The river birch, Betula nigra, of the eastern United States, the young bark of which is dark red. Now rare.
2Any of several New Zealand southern beeches, especially Nothofagus menziesii and N. fusca.
Origin
Late 18th century. From red + birch.