1. Qu, pronounced hú, is a Chinese word that refers to deciduous trees or shrubs.

2. Quercus is a deciduous tree or shrub. The leaves are obovate, the flowers are unisexual, yellow-brown, and monoecious. The fruit is spherical, with a bowl-shaped cup underneath. The wood is solid and can be used for construction and making utensils. The leaves can be fed to tussah silkworms. The husk and bark can be used to make tannins or dyes, and the leaves and husks can be used for medicinal purposes.