Botanical name : Vitex negundo Linn.
Family : Verbenaceae
SANSKRIT SYNONYMS
Nirgundi, sindhuvara, Neelamanjari,Indranika, Indrasurasa, Bhoothakeshi, Neelika
AYURVEDIC PROPERTIES
Rasa    : Katu, Tikta, Kashaya  
Guna   : Lakhu, Rooksha,
Virya   : Ushna
PLANT NAME IN DIFFERENT LANGUAGES
English  :  Five leaved chaste tree
Hindi  :  Samhalu, Saubhalu,Nirgandi
Malayalam :  Karunocci
PLANT DESCRIPTION
An aromatic large shrub or small tree of about 3 meters in height with quadrangular branches; leaves opposite, extipulate, long petioled and digitately 3-5 foliolate, all leaflets with petiolules, the middle one longer flowers bluish purple in panicles, up to 30 cm long; fruits globose or ovoid or obovoid, four seeded drupe, black when ripe.
 MEDICINAL PROPERTIES
Plant pacifies vitiated vata, arthritis, inflammations, lumbago, dyspepsia, colic, flatulence, dysentery, wounds, ulcers, bronchitis, cough, malarial fever, hemorrhoids, dysmenorrhoea, leprosy, and general debility.  
Useful part : Whole plant