What are the other names of the pencil tree plant?

Other names of the pencil tree
The pencil tree is also called the green jade tree, jade tree, smooth-branch tree, green coral, termite tree, iron tree, petroleum tree, iron luo, green coral, dragon bone tree, milk onion tree, and immortal staff.
Origin of the name of the pencil tree
The pencil tree has no flowers and no leaves, only bare branches, like sticks inserted into the tree, so people jokingly call it the "pencil tree," and some also call it the "green jade tree" and "immortal staff."
Because it often appears leafless, with a shape like green jade, it is also called the green jade tree.
Growing habits of the pencil tree
The pencil tree likes a warm growing environment, can tolerate drought, salt and wind, likes sufficient light, and has low soil requirements; it can grow in poor soil.
Distribution of the pencil tree
The pencil tree originated in the tropical regions of eastern and southern Africa and is now widely planted. It is cultivated in both northern and southern China; in the south it can be grown outdoors, while in the north it is grown in greenhouses for ornamental purposes.