Cyperaceæ.
Sedge Family.
Cyperus rotundus, L.
Nom. Vulg.—Mutha, Tag.; Botobotones, Vis.; Mota, Malaapolid, Sursur, Onoran, Kusug̃, Omadiug̃, Galonalpas, Pam.; Nutgrass or Coco-grass, Eng.
Uses.—The root possesses stimulant, diaphoretic, diuretic and emmenagogue properties. In the Philippines it is used internally for dysentery, and in India for the same purpose and as a vermifuge. It is given as a tonic in gastro-intestinal diseases, and General Hardwick has reported good results with it in cholera; as he reported only two cases, his testimony is not of much value.
The Chinese use the dry or roasted root, especially in inflammation of the viscera and uterine diseases. They also attribute to it diuretic, emmenagogue and anthelmintic properties. In Java and India they use it for gonorrhœa, and in Mauritius as a diaphoretic and astringent. In the Philippines the bruised root is applied to the face for toothache.
Botanical Description.—The root is ovoid, ranging in size from that of a hazel-nut to that of a walnut, composed of a white, spongy substance. Leaves sword-shaped, ensheathing the stem. Flowers in a compound umbel on the end of the stalk which is naked, long and triangular. The umbellets are alternate, awl-shaped, with distinct flowers. Calyx universal, with 2 sword-shaped leaflets. Calyx proper, a very small, ridged scale. Corolla none. Stamens 3. Filaments long, inserted on the base of the ovary. Anthers long and straight. Style 1. Stigmas 3, simple, revolute. Fruit 1. Seed oblong, 3-sided, glabrous.
Habitat.—Common in Luzon and Panay. Blooms in June and July.