| BET | small shrub of colder parts of North America and Greenland |
|---|---|
| BET | common birch of the eastern United States having spicy brown bark yielding a volatile oil and hard dark wood used for furniture |
| BET | tree of eastern North America with thin lustrous yellow or gray bark |
| BET | Alaskan birch with white to pale brown bark |
| BET | birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark |
| BET | small American birch with peeling white bark often worked into e.g. baskets or toy canoes |
| BET | European birch with silvery white peeling bark and markedly drooping branches |
| BET | medium-sized birch of eastern North America having white or pale gray bark and valueless wood |
| BET | European birch with dull white to pale brown bark and somewhat drooping hairy branches |
| BET | monoecious trees and shrubs (including the genera Betula and Alnus and Carpinus and Corylus and Ostrya and Ostryopsis) |
| BET | of or pertaining to or characteristic of trees of the birch family |
| BET | in between |