The plant is a clustering perennial growing to a height of 1.5 meters. Stems are cylindric, ribbed, smooth and green. Leaves are linear, radiating from the terminal point of stem, spreading or slightly drooping, up to 20 cm long. Flowers are small, green and clustered.
Widely distributed in the Philippines, in canals, ponds, and riversides.
Occasionally planted as an ornamental.
• No reported folkloric medicinal use in the Philippines.
• Antifungal / Antioxidant / Antibacterial:
Study of root and leaf extracts of Cyperus alternifolius showed moderate activity against all yeast tested, while the root extract showed a clear antioxidant activity. It showed strong activity against both sensitive and resistant S aureus strains and against E faecalis.