What is straw? what is its significance for plants?

A straw is a type of plant stem. It is found mainly in herbaceous plants, and differs in that it is hollow inside. Also, the straw is quite strong in structure, and resembles a pipe. It can reach a height of more than ten meters, like a bamboo. The function of the straw (as in other types of stems) is to carry water from the nutrients dissolved in it from the roots to the leaves. The second function is to be the base for leaves and branches, as well as for seeds. Stand against strong winds.