Bast fiber or skin fiber is plant fiber collected from the phloem (the “inner bark” or the skin) or bast surrounding the stem of certain, mainly dicotyledonic, plants. They support the conductive cells of the phloem and provide strength to the stem. Most of the technically important bast fibers are obtained from herbs cultivated in agriculture, as for instance flax, hemp, or ramie, rattan, bamboo.
Source: Wikipedia
Category: Fiber