Haijinsha is a perennial herbaceous plant. Its height is about 1 to 5 meters. The plant is relatively high. The rhizome under it grows crosswise. Its texture is relatively tough. There are many small fibrous roots distributed on the edge. The color of its appearance is black brown. The color looks darker than that of the others. Some hairs are distributed on it.
The number of growth on the leaves is relatively large, which is distributed on both sides of the twigs above the stem. It seems that the distribution is relatively symmetrical, and the top of the leaf axis is sparsely distributed with short hairs. In summer, tassel like spikelets grow on the lower edge of the leaves. The spikes are about 2 to 5 mm long, with small warts on the surface.
