Betula utilis of the tree's native distribution, several forms have orange- or copper-colored bark. "Betula utilis" var. "jacquemontii", from the western end of the native habitat, is widely used because several cultivars have especially white bark. These include: Those cultivars marked have gained the Royal Horticultural Society's Award of Garden Merit. "B. utilis" 'Fascination' has an orange- to mahogany-colored bark, which peels off to reveal a polished-looking layer underneath. The bark of 'Wakehurst Place Chocolate', as the name implies, is dark brown to nearly black. Betula utilis Betula utilis (Himalayan birch, bhojpatra, "bhūrjá") is a birch tree native to the Himalayas, growing
Chrysolepis three sweet, edible nuts, eaten by the indigenous peoples. The fruit also provides food for birds and wildlife. "Chrysolepis" is related to the subtropical southeast Asian genus "Castanopsis" (in which it was formerly included), but differs in the nuts being triangular and fully enclosed in a sectioned cupule, and in having bisexual catkins. "Chrysolepis" also differs from another allied genus "Castanea" (chestnuts), in nuts that take 14–16 months to mature (3–5 months in "Castanea"), evergreen leaves and the shoots having a terminal bud. There are two species of "Chrysolepis" — "Chrysolepis chrysophylla" and "Chrysolepis sempervirens" — which like many species