披碱草（学名：Elymus dahuricus）是一种多年生禾本科植物。这种植物主要分布于北半球寒温带[1]，抗旱、耐寒和风沙、耐盐堿，是一种常见的牧草，可存活五至八年。存在变种圆柱披碱草（学名：Elymus dahuricus var. cylindricus Franch.）。
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