Bamboo

A bamboo is a tree which grows very high at a very fast speed. It is usually used for building materials, as a food source, and as a versatile raw product.

Humans also love eating bamboo in lots of ways, bamboo shoot or menma are good examples.

Misc

 * Some bamboo plants are said to be stronger than steels and sturdier than concrete. http://discovermagazine.com/1996/jun/thebamboosolutio784
 * A legend has once a man put his hat on top of a bamboo shoot, and after a month the bamboo has grown so high that the man could not take his hat from the top. A fast growing bamboo tree is said to extend a meter in 10 days.