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Genus Festuca
- a genus of tufted perennial grasses of the family Gramineae
Genus Holcus
- a genus of Old World grasses widely cultivated in America
Genus Hordeum
- annual to perennial grasses of temperate northern hemisphere and South America: barley
Genus Leymus
- genus that in some classifications overlaps the genus Elymus
Genus Muhlenbergia
- a genus of grasses of the family Gramineae grown in America and Asia