Synonyms: Critesion magellanicum; Critesion mustersii; Critesion patagonicum (homotypic); Critesion santacrucense; Critesion setifolium; Hordeum chilense var. magellanicum (homotypic); Hordeum marinum var. patagonicum; Hordeum maritimum var. patagonicum (homotypic); Hordeum mustersii; Hordeum patagonicum magellanicum; Hordeum patagonicum mustersii; Hordeum patagonicum patagonicum; Hordeum patagonicum santacrucense; Hordeum patagonicum setifolium; Hordeum patagonicum var. magellanicum; Hordeum patagonicum var. mustersii; Hordeum patagonicum var. santacrucense; Hordeum patagonicum var. setifolium; Hordeum santacrucense (homotypic); Hordeum setifolium (homotypic)