Kakmachi or Black nightshade, Solanum nigrum
Kaakmachi or B lack nightshade ( Solanum nigrum , family: Solanaceae ) is a perennial herb with soft stem and many branches. It is native to Eurasia and introduced to the tropical and sub-tropical regions of the world . Common names: B lack nightshade , Garden nightshade Fruit is a berry, smooth, 5-7 cm in diameter. Fruits are green and bitter when raw and dark purple when ripe. Ripe berries are attractive but poisonous. The flowers are small, pure white, clustered. Solanum nigrum is used in ulcer, piles, fever, vomiting, swelling, urinery and liver diseases.