Dicoma tomentosa is herbaceous plant having multiple medicinal properties. The experimental plant Dicoma tomentosa belongs to Combretaceae family, commonly known as Vajardanti.The traditional herbal medicines are receiving great importance in the health care sector.  It is commonly used in traditional system of medicine. It is a valuable desert plant which is commonly used in traditional system of medicine for febrifuge, particularly for children and for women after childbirth. In the present study, deals in plant primary metabolites like carbohydrates, lipids, protein, and phenols estimation by using UV spectrophotometer. On quantitative estimation, total levels of primary metabolites compare study to be maximum and minimum in stem and leaf. Finally, primary metabolites (carbohydrates, lipids, protein, and phenols) were a good source of energy for human health and cell repair.

Keywords: Dicoma Tomentosa; Primary Metabolites; UV Spectroscopy, Combretaceae Family.