It is one of the special vegetables in China. Usually eaten with underground swollen bulbs. It can be eaten raw or cooked, especially for canning. It's called Qingshui horseshoe. Starch can also be extracted, which is called starch III together with lotus root powder and water chestnut powder.
Creeping rhizomes are slender. Most of the culms are tufted, straight, slender, cylindrical, 40- 100 cm high, 2-3 mm in diameter, gray-green, smooth, hairless and septate. After drying, the surface of the stalk has knots and many longitudinal stripes.
No leaves, only 2-3 leaf sheaths at the base of the stem; Sheath is light brown, smooth, hairless, membranous, clasping stems, with oblique sheath mouth and sharp tip, 7- 15 cm long. Spikelets are cylindrical, 2-4 cm long, about 3 mm in diameter and light green.
Nutlets are obovate, oblate, biconvex, 2 mm long and 65438±0.2mm wide, smooth, yellow at the top and hexagonal in surface cells. Style base is flat, long and narrow triangle, not spongy, and there are inconspicuous rings at the base. The texture of the ring is the same as that of the nutlet, but the color is lighter. The flowering and fruiting period is May-65438+1October.