dwarf birch Betulaceae Betula glandulosa
Leaf:Alternate, simple, pinnately-veined, nearly round, 1/2 to 1 inch long, with 10 or fewer rounded large teeth on each side, thickened, sticky and resinous, shiny green above and a bit paler below, with petioles longer than the very similar B. nana.
Flower:Species is monoecious; single preformed male catkins are 1/2 inch long, and become much longer and yellow-green as they open in late spring; females are upright, 1/2 inch long, and reddish green in color.
Fruit:Cone-like aggregate of winged nutlets, 1/2 to 1 inch long, upright, ripen in late fall.
Twig:Slender, dark reddish brown, covered with resinous glands, mostly glabrous; buds are reddish-brown and resinous; spur shoots numerous; no taste or odor.
Bark:Shiny, dark brown, numerous pale horizontal lenticels; larger stems develop dull white markings.
Form:Dense shrub reaching up to 10 feet in height with a round crown in the southern parts of its range. It is much shorter (18 inches) and more prostrate in the northern (artic) portions of its range.