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Croton bonplandianus

Normally Crotons are popular foliage plants. This is a wild species of croton. Due to the resemblance of the leaves and flower cymes to that of Tulsi, this plant is often called Ban Tulsi (jungle tulsi) It is a small annual herb, growing up to 1-2 ft tall. Ref: http://www.flowersofindia.in/catalog/slides/Ban%20Tulsi.html