Barn RED Natural Dye:
Pterocarpus santalinus, with the common names Red Sanders, Red Sandalwood, and Saunderswood, is a species of Pterocarpus endemic to the southern Eastern Ghats mountain range of South India. This tree is valued for the rich red color of its wood. The wood is not aromatic. The tree is not to be confused with the aromatic Santalum Sandalwood trees that grow natively in South India.
The chief use of Red Saunders wood is as a dye-stuff. In India it is employed mixed with sapan wood, for dyeing silk, cotton and wool, the shade of red varying according to the mordant used.