|
"Oo-numa-harii" (Eleocharis mamillata var. cyclocarpa) belongs to Cyperaceae (the Sedge family). It is a perennial herb that native to Japan, the Korean Peninsula, northeastern China and Ussuri. The herb grows in wettish places by ponds and bogs, and can reach 30-70 cm in height. It spreads by underground stolons and forms clumps. The stem is round, flexible and turns flattened under the dry condition. The alone spike is borne on the stem apices from July to October. The spike is iron rust-colored and thicker than the stem, and measures 1-3 cm long, 3-6 mm in width.
|