Elymus dahuricus Turcz (scientific name: Elymus dahuricus Turcz.) is a grass family, genus Elymus dahuricus Turcz. The culms are sparse, upright, up to 140 cm high, and the leaf sheaths are smooth and glabrous; the leaves are flat, sparsely involute, rough on the top and smooth on the bottom. The spikes are erect and compact. The cob edges are small with cilia and the spikelets are green. After maturity, it becomes grass yellow with small flowers; glume-lanceolate or linear-lanceolate, lemma-lanceolate, rough awn, equal length of lemma and lemma, truncated apex, cilia on the ridge, inter-ridge Sparse short hair.