- Botanical name : Ricinus communis Linn.
- Family : Euphorbiaceae
- Malayalam : Avanakku
- Tamil : Amanakku
- English : Castor plant
- Habit : Tall annual shrub
- Useful part : Root, Seed
- Rasa Panchaka
- Rasa : Madhura ,katu,kashaya
- Guna : Thikshna,guru
- Veerya : Ushna
- Vipaka : Madhura
- Karma : Tridosha shamana
- Indications : Katisula,sula,anaha,malabaddhata,gulma
- Dose : Thaila(20-40ml),moola churna(3-6g),
- moola kalka(3-6g)
- Formulations : Eranda thaila, Gandharvahasthadi kashayam
