Zoysia japonica is a perennial herb with transverse rhizome and upright culm, about 14-20cm high. There are usually persistent and withered leaf sheaths at the base. The ligule is fimbriate, the leaf blade is slightly involute or flat, about 2.5-5 cm long, about 2-4 mm wide, the surface is pilose, the back is glabrous.
The basal internodes of Manila grass are short and each node has one to several branches. The leaf sheath is longer than the internode, the ligule is shorter but not obvious, the leaf blade is involute, and the former is shorter, the longest is 3cm, the width is about 1-2mm.
Zoysia for the raceme, for the spike, spikelet for the egg, pale yellow green or purplish brown.
Manila grass is also a raceme, for the fine column, spikelets for the egg shaped lanceolate, the color is yellow brown or purplish brown.