Some of these fibres can be e.g., hemp, jute, flax, sisal, banana, kapok or phormium (New Zealand flax) .
It is desirable that the matrix too originates from cellulose or starch, so that a better compatibility is achieved in the material: an example of starch derived polymer is polylactic acid (PLA) .
Working on biocomposites can be challenging, because it is important for the environment and involves multidisciplinary competencies
(e.g., engineering and plant science).
The first natural composite is wood: know more about wood properties
To know more about plants in general, you can go to this other page or, if you read Italian, to this one.