Ocimum /ˈɒsɪməm/ is a genus of aromatic annual and perennial herbs and shrubs in the family Lamiaceae, native to the tropical and warm temperate regions of all 6 inhabited continents, with the greatest number of species in Africa. It is the genus of basil and the name is from the Ancient Greek word for basil, ὤκιμον (ṓkimon). Its best known species are the cooking herb cooking basil, O. basilicum and the medicinal herb tulsi (holy basil), O. tenuiflorum.