Botanical name: Celastrus
Common name: Black Oil Plant, celastrus, oriental bittersweet, intellect tree, staff tree
Hindi: malkangani •
Tamil: kuvarikuntal, mannai-k-katti, valuluvai •
Telugu: kasara-tige, maneru •
Kannada: bhavamga, jotishmati, kariganne, kougilu
Black Oil Plant is an unarmed large woody climber. Alternately arranged leaves are very variable – elliptic, ovate, broadly, obovate or circular, up to 6 × 11 cm. Base is wedge-shaped, obtuse or rounded, tip is acute, acuminate or obtuse. Flowers are borne in large panicles at the end of branches.