Bon tamak or Wild tobacco (nicotiana plumbaginifolia, family: solanaceae) is an erect herb with branches attaining a height of 60-70 cm. There are many branches below rather than the top.
Flowers are white with light pink shade, corolla tubular, sepals 5, petals 5. Flower grows as single from leaf axil. Flower blooms round the year. The fruits are covered with 10 permanent veins. Seeds are small, black in color, upper part wrinkled.