The Abaca is a plant related to the banana plant, though the fruit from the abaca is not edible. Its fiber is referred to as Manila hemp, though it is not actually hemp.. The abaca plant is native to the Philippines.  Manilla envelopes and manilla folders take their name from this particular fiber.
- Philippine Herbal Medicine
- Nuttall Encyclopedia of General Knowledge, article on Abaca originally published in 1907 written by Reverend James Wood