Family: Euphorbiaceae

Bengali/Vernacular Name: Reri, Bherenda, Arenda, Gab-bherenda.

Tribal Name: Rangma-vedul (Chakma), Krachchubaoung (Marma).

English Name: Castor, Castor oil plant.

Description of the Plant:
A tall slender, evergreen, soft-wooded shrub. Leaves large, 30-60 cm diam., palmalely lobed; lobes 7 or more, serrate. Flowers monoecious, in terminal sub paniculate stout, erect racemes. Male flowers 1.25 cm diam., crowded in the upper portion of the inflorescence, the female below. Fruit a prickly capsule, 1.25-2.5 cm long, globosely oblong, of three 2-valved cocci.

Using Information:
Seed oil is a strong purgative; used externally as a massage for rheumatic pains, joint pain, paralysis and internally for the treatment of constipation. The leaves are used as galactagogue, and in headache. Seeds paste is used as counter irritant. Root bark and leaf also have purgative properties; decoction is used for rheumatism, inflammations and nervous disorders. In Rangamati Chakma prescribe decoction of the leaves in jaundice. Juice of tender leaves is given with sugar or sugar candy in dysentery (Yusuf et al. 2009).

The toxalbumin and ricin contained in the seed oil possesses anti-cancer properties (Ghani, 2003).

Chemical Constituents:
Seeds yield high percentage (46 to 53%) of a fixed oil. The oil principally consists of glycerides of ricinoleic, isoricinolic, stearic and dihydroxystearic acids, free ricinoleic, isoricinolic, stearic, linoleic, oleic and palmitic acids and a small quantity of palmitin and stearin. They also contain an alkaloid, ricinine and proteins consisting of globulin, albumin, nucleoalbumin, glycoprotein, a toxalbumin, ricin and some enzymes (Ghani, 2003). Seed coat contains 1.50-1.62% lipids and higher amounts of phosphatides and non-saponifiable matter than seed kernel (Rastogi & Mehrotra, 1993).


In most of the places of Bangladesh in fallow lands and stream banks.

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Retutn to Medicinal Plants: Part Q-R