Trichosclereids are hard needlelike branched cells found in some species of plants that serve the purpose of protecting the plant from herbivores. They usually are approximately 6 mm long, but in some species they grow to as long as 1 cm.
- Bown, Demi (2000). Aroids: Plants of the Arum Family. Timber Press. ISBN 0-88192-485-7.