Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. organic material
7. oil (organic material)
8. [oil by composition or origin]
9. vegetable oil

Anotations

Scope note:

Yellow-brown poisonous oil derived from the seeds of the tree Croton tiglium native to India and Sri Lanka. Originally used as a purgative and as a substitute for castor oil, it is now thought too dangerous for medicinal purposes.