Mimosa pudica L

Common names: Sensitive mimosa, sensitive plant; putri malu (Malay); herbe chaste (French); mat co (Vietnamese); preah khlop (Cambodian).

[From Greek, mimos = mime and from Latin, pudere = be ashamed]

Physical description: It is a poisonous, handsome, decumbent tropical herb native to South America. The stems are purplish, woody and prickly. Leaves: bipinnate, 2cm-5cm long and automatically closing after being touched. The folioles are numerous (5-26 pairs), 6mm-1.6cm x 1.5mm-3mm, and purple-margined. The flowers are very small and arranged in delicate pinkish heads. The corolla is 1.5 mm-2 mm long. The stamens are 4.5mm-6mm long and pink. The pods are 1 cm-2 cm x 4 mm, linear and slightly constricted between the seeds.

Common names: Sensitive mimosa, sensitive plant; putri malu (Malay); herbe chaste (French); mat co (Vietnamese); preah khlop (Cambodian).

Pharmaceutical interest: Mimosa pudica L. inhibits the growth of Gram negative Vibrio cholerae cultured in vitro (Akinsinde KA et a/., 1995), hence confirming the antidiar-rheal property of the plant. The antifer-tility property of Mimosa pudica L. is confirmed as a root powder given intra-gastrically at a dose of 150 mg/Kg body alters the oestrous cycle of female albino rats (Valsala S eta/., 2002). One could set the hypothesis that the invigorating property of the plant might be explained by effects on both glycaemia and depression. An ethanolic extract of the leaves given per os at a dose of 250 mg/Kg, elevates significantly the glycaemia in mice (Amalraj T et a/., 2002). An aqueous extract injected intraperitonneally in rats at doses ranging from 2 mg/Kg to 8 mg/Kg, displays a significant antidepressant action similar to the antidepressant action of the drugs desipramine and clomipramine (Molina M et a/., 1999). A decoction of the plant is anticonvulsant. Aqueous

Uses: In Malaysia, a paste made from the powdered leaves of Mimosa pudica L. is used externally to soothe swollen parts and a decoction of the plant is drunkto purify the blood. In the Philippines, the roots are used to promote urination and stop dysentery, and a decoction of the plant is drunktotreat asthma. In Vietnam, a decoction of the leaves is drunk to invigorate. In Cambodia, the whole herb is used to expel vesical stones, and it is applied externally to treat oedema and rheumatism, assuage myalgia and to remove tumor of the uterus. In India, the roots are used to stop dysentery, inhibit fertility, soothe inflammation, purify the blood, treat jaundice, leprosy, smallpox and asthma, and to heal ulcers.

and alcoholic extracts of the dried roots of Mimosa pudica L. protect rodents against the toxic enzymes of Naja kaouthia venom (Mahanta M et al ., 2001). One might set the hypothesis that the antivenom property could have resulted from the inhibition of venom metalloproteinases by mimosine (see p. 350).

Continue reading here: References

Was this article helpful?

0 0