other than cotton, the most common plant-based fiber, cellulose fibers include: jute, flax, hemp, ramie, abaca, bamboo (used for viscose), soy, corn, banana, pineapple, beechwood (used for rayon). alternative fibers such as bamboo (in yarn) and hemp (of a variety that produces only a tiny amount of the psychoactive component found in cannabis) are coming into greater use in so-called eco-fashions.