What species is this tree from Dongguan?

Based on the information you provided, this tree in Dongguan may be the Agarwood tree, also known as agarwood. It belongs to the genus Agarwood of the Thymeaceae family and is a kind of tree. The bark of the Wanxiang tree is dark gray, almost smooth, and the fibers are tough; the branchlets are cylindrical, with crepe patterns, sparsely pubescent when young, and then gradually fall off, hairless or nearly hairless; the leaves are leathery, round, oval to long Round, sometimes nearly obovate, apex sharp or acute with short apex, base broadly wedge-shaped, dark green or purple-green above, bright, light green below, hairless on both sides; flowers fragrant, yellow-green, many, Forming an umbel; the capsule fruit stem is short, ovoid, green when young; the seeds are brown, ovoid; the flowering period is spring and summer, and the fruiting period is summer and autumn.

Wanxiang trees are mainly produced in Guangdong, Hainan, Guangxi, Fujian and other places in China. They grow in low-altitude mountains, hills and sparse forests in sunny areas along the roadside. The coriander tree is shade-tolerant and likes to grow on moist sandy loam rich in humus. The wood structure of the Wanxiang tree is fine, uniform, light and soft, and is suitable for use as electrical insulation materials, light packaging boxes, toys, etc. The bark fiber can be used as a raw material for papermaking.

Please note that plant taxonomy is somewhat professional and complex. If you need a more accurate and detailed understanding, it is recommended to consult professionals or refer to relevant materials.