Like a lot of typical intertropical plants, paper nutgrass flatsedge is very sensitive to frost.

像许多典型的热带植物一样，纸莎草对霜很敏感。

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Result: All the three samples were found safflower , nutagrass flatsedge rhizome , dandelion in the TLC chromatography .

结果：三批样品中TLC色谱中均能检出红花、香附、蒲公英。

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