whitebarked

Whitebarked refers to trees characterized by bark that is predominantly white or very pale in color. This distinctive coloration is a prominent feature that can aid in identification. Several tree species exhibit white bark, with the most well-known being various types of birch trees. For example, the paper birch (Betula papyrifera) and the European white birch (Betula pendula) are iconic for their bright white, peeling bark. Other trees, such as the aspen (Populus tremuloides), also possess pale, often whitish bark, especially when young, though it can develop darker fissures with age.

The white color of the bark is often due to the presence of betulin, a chemical compound that is abundant in the outer bark layers of many birch species. Betulin is believed to provide protection against insects, diseases, and excessive UV radiation. The peeling or exfoliating nature of some white barks, like that of the paper birch, allows for the shedding of the outer layer, which can also help in regulating temperature and preventing the buildup of parasites. The striking appearance of white-barked trees makes them a popular choice for landscaping and ornamental planting in temperate regions. Their visual contrast against darker foliage or backgrounds is particularly notable.