Cyperus scariosus, also known in English as cypriol and in Hindi as Nagarmotha, is a plant of the Cyperaceae family, that grows wild in the Madhya Pradesh region of India. It is highly-prized in India for its roots and is used in aromatherapy, as a perfume and for many other purposes.

Steam distillation of the tubers of cypriol yields 0.075-0.080% of an essential oil, the principal content of which is cyperine.

• Latin name: Cyperus scariosus
• English name: Umbrella's Edge
• Sanskrit name: Nagaramustaka, Bhadramusta
• Hindi name: Nagarmotha