The epithet “alpina” has been recurrently used in the genus Deschampsia to name plants located in northern regions of Europe, Asia and North America, as a species (Deschampsia alpina (L.) Roem. & Schult.), but also in infraspecific categories (Deschampsia cespitosa subsp. alpina Tzvel. and Deschampsia cespitosa var. alpina Schur.). The morphological and molecular available evidence suggests the existence of a single species, Deschampsia cespitosa (L.) P. Beauv., in which individuals belonging to the same morphological gradient have received different names in different taxonomic categories throughout its wide distribution range. An evaluation of the available names indicates that all uses of the epithet “alpina” are illegitimate. A new combination is proposed at the infraspecific level as Deschampsia cespitosa subsp. neoalpina Chiapella, Xue & Greimler.

中文翻译：

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Deschampsia 属和加词“alpina”

加词“alpina”在 Deschampsia 属中反复使用，以将位于欧洲、亚洲和北美北部地区的植物命名为一个物种（Deschampsia alpina (L.) Roem. & Schult.），但也用于种下分类（Deschampsia cespitosa subsp. alpina Tzvel. 和 Deschampsia cespitosa var. alpina Schur.）。现有的形态学和分子学证据表明存在单一物种 Deschampsia cespitosa (L.) P. Beauv.，其中属于同一形态梯度的个体在其广泛的分布范围内在不同的分类学类别中获得了不同的名称。对可用名称的评估表明，加词“alpina”的所有使用都是非法的。在种下水平提出了一种新的组合，如 Deschampsia cespitosa subsp。Neoalpina Chiapella，