Betula populifolia the female catkins erect. The fruit, maturing in autumn, is composed of many tiny winged seeds packed between the catkin bracts. The wood is medium hard and is used for high grade plywood, furniture, drum shells, spools and firewood. Like other North American birches, gray birch is highly resistant to the Bronze birch borer ("Agrilus anxius"). The leaves of the gray birch serve as food for various Lepidoptera, such as the leaf miner moth "Cameraria betulivora". Between about 1930 and 1950, many gray birch trees, along with paper birch and yellow birch ("Betula alleghaniensis"), were affected and killed by birch
Fuchsia excorticata Fuchsia excorticata Fuchsia excorticata, commonly known as tree fuchsia, New Zealand fuchsia and by its Māori name kōtukutuku, is a New Zealand native tree belonging to the family Onagraceae. It is commonly found throughout New Zealand and as far south as the Auckland Islands. It grows from sea level up to about , particularly alongside creeks and rivers. It is easily recognised in its native environment by the characteristic appearance of its bark, which peels spontaneously, hanging in red papery strips to show a pale bark underneath. Its scientific name, "excorticata", reflects this distinctive property. "Fuchsia excorticata" is the largest