... It is an erect, much branched, 30-60 cm tall sub-shrub, with simple, ovate, petiolate, aromatic, tomentose, opposite green or purple, dentate leaves; flowers purple, in elongate racemes in close whorls. [23,24] Tulsi, the queen of herbs is considered as an adaptogenic, antidote, astringent, blood purifier, insecticide, cardiac and nervine tonic; used to treat arthritis, asthma, blood cholesterol, bronchitis, cardiovascular, gastric, digestive, hepatic and immunological disorders, colds, colic pain, constipation, convulsions, cough, dengue, diabetes, diarrhoea, dysentery, dyspepsia, earache, emetic syndrome, fevers, headaches, heart disease, helminthisis, inflammation, influenza, indigestion, insect bites, intestinal parasites, itching, ringworm, leucoderma, malaria, mouth infections, night blindness, pain, ringworm, skin rashes, stomach disorders, stress, swelling and toxicity. It is mixed with stored grains to repel insects. ...